Home / 87,332.64-120,423.69-58,989.12

Finding the Fourth Proportional to 87,332.64, 120,423.69 and 58,989.12

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Solution

The fourth proportional to 87,332.64, 120,423.69 and 58,989.12 is: 81,340.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,332.64 : 120,423.69 = 58,989.12 : x
  2. Step 2: Convert to fraction form
    87,332.64/120,423.69 = 58,989.12/x
  3. Step 3: Cross multiply
    87,332.64x = 120,423.69 × 58,989.12
  4. Step 4: Simplify right side
    87,332.64x = 7,103,687,500.25
  5. Step 5: Solve for x
    x = 7,103,687,500.25/87,332.64
  6. Step 6: Final answer
    x = 81,340.58

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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.