Home / 87,399.38-120,614.75-49,160.71

Finding the Fourth Proportional to 87,399.38, 120,614.75 and 49,160.71

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Solution

The fourth proportional to 87,399.38, 120,614.75 and 49,160.71 is: 67,843.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,399.38 : 120,614.75 = 49,160.71 : x
  2. Step 2: Convert to fraction form
    87,399.38/120,614.75 = 49,160.71/x
  3. Step 3: Cross multiply
    87,399.38x = 120,614.75 × 49,160.71
  4. Step 4: Simplify right side
    87,399.38x = 5,929,506,425.28
  5. Step 5: Solve for x
    x = 5,929,506,425.28/87,399.38
  6. Step 6: Final answer
    x = 67,843.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.