Home / 87,010.20-130,439.97-51,876.05

Finding the Fourth Proportional to 87,010.20, 130,439.97 and 51,876.05

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Solution

The fourth proportional to 87,010.20, 130,439.97 and 51,876.05 is: 77,769.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,010.20 : 130,439.97 = 51,876.05 : x
  2. Step 2: Convert to fraction form
    87,010.20/130,439.97 = 51,876.05/x
  3. Step 3: Cross multiply
    87,010.20x = 130,439.97 × 51,876.05
  4. Step 4: Simplify right side
    87,010.20x = 6,766,709,753.52
  5. Step 5: Solve for x
    x = 6,766,709,753.52/87,010.20
  6. Step 6: Final answer
    x = 77,769.16

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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.