Finding the Fourth Proportional to 71,391.08, 107,153.10 and 36,357.08
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Solution
The fourth proportional to 71,391.08, 107,153.10 and 36,357.08 is: 54,569.48
Step by Step Solution
- Step 1: Write the proportion equation
71,391.08 : 107,153.10 = 36,357.08 : x - Step 2: Convert to fraction form
71,391.08/107,153.10 = 36,357.08/x - Step 3: Cross multiply
71,391.08x = 107,153.10 × 36,357.08 - Step 4: Simplify right side
71,391.08x = 3,895,773,828.95 - Step 5: Solve for x
x = 3,895,773,828.95/71,391.08 - Step 6: Final answer
x = 54,569.48
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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.