Home / 87,132.92-130,711.48-27,986.72

Finding the Fourth Proportional to 87,132.92, 130,711.48 and 27,986.72

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Solution

The fourth proportional to 87,132.92, 130,711.48 and 27,986.72 is: 41,983.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,132.92 : 130,711.48 = 27,986.72 : x
  2. Step 2: Convert to fraction form
    87,132.92/130,711.48 = 27,986.72/x
  3. Step 3: Cross multiply
    87,132.92x = 130,711.48 × 27,986.72
  4. Step 4: Simplify right side
    87,132.92x = 3,658,185,591.55
  5. Step 5: Solve for x
    x = 3,658,185,591.55/87,132.92
  6. Step 6: Final answer
    x = 41,983.97

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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.