Finding the Fourth Proportional to 88,015.97, 121,528.56 and 54,070.97
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Solution
The fourth proportional to 88,015.97, 121,528.56 and 54,070.97 is: 74,658.80
Step by Step Solution
- Step 1: Write the proportion equation
88,015.97 : 121,528.56 = 54,070.97 : x - Step 2: Convert to fraction form
88,015.97/121,528.56 = 54,070.97/x - Step 3: Cross multiply
88,015.97x = 121,528.56 × 54,070.97 - Step 4: Simplify right side
88,015.97x = 6,571,167,121.90 - Step 5: Solve for x
x = 6,571,167,121.90/88,015.97 - Step 6: Final answer
x = 74,658.80
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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.