Home / 87,136.92-130,785.54-53,921.88

Finding the Fourth Proportional to 87,136.92, 130,785.54 and 53,921.88

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Solution

The fourth proportional to 87,136.92, 130,785.54 and 53,921.88 is: 80,932.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,136.92 : 130,785.54 = 53,921.88 : x
  2. Step 2: Convert to fraction form
    87,136.92/130,785.54 = 53,921.88/x
  3. Step 3: Cross multiply
    87,136.92x = 130,785.54 × 53,921.88
  4. Step 4: Simplify right side
    87,136.92x = 7,052,202,193.62
  5. Step 5: Solve for x
    x = 7,052,202,193.62/87,136.92
  6. Step 6: Final answer
    x = 80,932.42

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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.