Finding the Fourth Proportional to 97,982.51, 135,211.92 and 57,697.97
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Solution
The fourth proportional to 97,982.51, 135,211.92 and 57,697.97 is: 79,620.88
Step by Step Solution
- Step 1: Write the proportion equation
97,982.51 : 135,211.92 = 57,697.97 : x - Step 2: Convert to fraction form
97,982.51/135,211.92 = 57,697.97/x - Step 3: Cross multiply
97,982.51x = 135,211.92 × 57,697.97 - Step 4: Simplify right side
97,982.51x = 7,801,453,110.02 - Step 5: Solve for x
x = 7,801,453,110.02/97,982.51 - Step 6: Final answer
x = 79,620.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.