Finding the Fourth Proportional to 86,505.10, 129,711.39 and 44,367.99
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Solution
The fourth proportional to 86,505.10, 129,711.39 and 44,367.99 is: 66,528.26
Step by Step Solution
- Step 1: Write the proportion equation
86,505.10 : 129,711.39 = 44,367.99 : x - Step 2: Convert to fraction form
86,505.10/129,711.39 = 44,367.99/x - Step 3: Cross multiply
86,505.10x = 129,711.39 × 44,367.99 - Step 4: Simplify right side
86,505.10x = 5,755,033,654.41 - Step 5: Solve for x
x = 5,755,033,654.41/86,505.10 - Step 6: Final answer
x = 66,528.26
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.