Ms. Garcia Math
Using the Proportion Method to Solve Percent Problems
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Any percent can be written as a proportion
PERCENT (%)
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means how many for each 100
80%
of students passed math
The percent always goes over 100 (It's a part of the whole 100%)
Types of percent problems
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There are three basic types of percent problems:
Find the Percent
48 is what percent of 60?
Find the Part
What number is 80% of 60?
Find the Whole
80% of what number is 48?
Write the problem as a proportion
(In a proportion the cross-products are equal)
To solve multiply the two opposite corners with numbers, then divide by the other number.
Identifying Percent Part and Whole
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