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Finding the Fourth Proportional to 83,255.97, 125,034.29 and 76,580.28

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Solution

The fourth proportional to 83,255.97, 125,034.29 and 76,580.28 is: 115,008.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,255.97 : 125,034.29 = 76,580.28 : x
  2. Step 2: Convert to fraction form
    83,255.97/125,034.29 = 76,580.28/x
  3. Step 3: Cross multiply
    83,255.97x = 125,034.29 × 76,580.28
  4. Step 4: Simplify right side
    83,255.97x = 9,575,160,554.90
  5. Step 5: Solve for x
    x = 9,575,160,554.90/83,255.97
  6. Step 6: Final answer
    x = 115,008.70

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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.