Finding the Fourth Proportional to 75,644.62, 113,434.12 and 25,711.31
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Solution
The fourth proportional to 75,644.62, 113,434.12 and 25,711.31 is: 38,555.81
Step by Step Solution
- Step 1: Write the proportion equation
75,644.62 : 113,434.12 = 25,711.31 : x - Step 2: Convert to fraction form
75,644.62/113,434.12 = 25,711.31/x - Step 3: Cross multiply
75,644.62x = 113,434.12 × 25,711.31 - Step 4: Simplify right side
75,644.62x = 2,916,539,823.90 - Step 5: Solve for x
x = 2,916,539,823.90/75,644.62 - Step 6: Final answer
x = 38,555.81
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1.5x scale
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.