Finding the Fourth Proportional to 71,542.15, 107,328.42 and 27,167.92
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Solution
The fourth proportional to 71,542.15, 107,328.42 and 27,167.92 is: 40,757.65
Step by Step Solution
- Step 1: Write the proportion equation
71,542.15 : 107,328.42 = 27,167.92 : x - Step 2: Convert to fraction form
71,542.15/107,328.42 = 27,167.92/x - Step 3: Cross multiply
71,542.15x = 107,328.42 × 27,167.92 - Step 4: Simplify right side
71,542.15x = 2,915,889,734.49 - Step 5: Solve for x
x = 2,915,889,734.49/71,542.15 - Step 6: Final answer
x = 40,757.65
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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.