Finding the Fourth Proportional to 88,400.87, 121,991.49 and 48,115.52
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Solution
The fourth proportional to 88,400.87, 121,991.49 and 48,115.52 is: 66,398.48
Step by Step Solution
- Step 1: Write the proportion equation
88,400.87 : 121,991.49 = 48,115.52 : x - Step 2: Convert to fraction form
88,400.87/121,991.49 = 48,115.52/x - Step 3: Cross multiply
88,400.87x = 121,991.49 × 48,115.52 - Step 4: Simplify right side
88,400.87x = 5,869,683,366.97 - Step 5: Solve for x
x = 5,869,683,366.97/88,400.87 - Step 6: Final answer
x = 66,398.48
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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.