Home / 83,561.72-125,422.17-51,875.90

Finding the Fourth Proportional to 83,561.72, 125,422.17 and 51,875.90

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Solution

The fourth proportional to 83,561.72, 125,422.17 and 51,875.90 is: 77,863.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,561.72 : 125,422.17 = 51,875.90 : x
  2. Step 2: Convert to fraction form
    83,561.72/125,422.17 = 51,875.90/x
  3. Step 3: Cross multiply
    83,561.72x = 125,422.17 × 51,875.90
  4. Step 4: Simplify right side
    83,561.72x = 6,506,387,321.59
  5. Step 5: Solve for x
    x = 6,506,387,321.59/83,561.72
  6. Step 6: Final answer
    x = 77,863.26

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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.