Finding the Fourth Proportional to 97,979.87, 135,201.88 and 57,691.01
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Solution
The fourth proportional to 97,979.87, 135,201.88 and 57,691.01 is: 79,607.51
Step by Step Solution
- Step 1: Write the proportion equation
97,979.87 : 135,201.88 = 57,691.01 : x - Step 2: Convert to fraction form
97,979.87/135,201.88 = 57,691.01/x - Step 3: Cross multiply
97,979.87x = 135,201.88 × 57,691.01 - Step 4: Simplify right side
97,979.87x = 7,799,933,011.10 - Step 5: Solve for x
x = 7,799,933,011.10/97,979.87 - Step 6: Final answer
x = 79,607.51
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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.