Home / 87,395.32-120,614.79-53,423.69

Finding the Fourth Proportional to 87,395.32, 120,614.79 and 53,423.69

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Solution

The fourth proportional to 87,395.32, 120,614.79 and 53,423.69 is: 73,730.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,395.32 : 120,614.79 = 53,423.69 : x
  2. Step 2: Convert to fraction form
    87,395.32/120,614.79 = 53,423.69/x
  3. Step 3: Cross multiply
    87,395.32x = 120,614.79 × 53,423.69
  4. Step 4: Simplify right side
    87,395.32x = 6,443,687,150.38
  5. Step 5: Solve for x
    x = 6,443,687,150.38/87,395.32
  6. Step 6: Final answer
    x = 73,730.35

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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.