Finding the Fourth Proportional to 88,356.48, 121,869.84 and 58,132.14
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Solution
The fourth proportional to 88,356.48, 121,869.84 and 58,132.14 is: 80,181.49
Step by Step Solution
- Step 1: Write the proportion equation
88,356.48 : 121,869.84 = 58,132.14 : x - Step 2: Convert to fraction form
88,356.48/121,869.84 = 58,132.14/x - Step 3: Cross multiply
88,356.48x = 121,869.84 × 58,132.14 - Step 4: Simplify right side
88,356.48x = 7,084,554,600.66 - Step 5: Solve for x
x = 7,084,554,600.66/88,356.48 - Step 6: Final answer
x = 80,181.49
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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.