Home / 87,138.56-120,287.85-58,882.52

Finding the Fourth Proportional to 87,138.56, 120,287.85 and 58,882.52

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Solution

The fourth proportional to 87,138.56, 120,287.85 and 58,882.52 is: 81,282.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,138.56 : 120,287.85 = 58,882.52 : x
  2. Step 2: Convert to fraction form
    87,138.56/120,287.85 = 58,882.52/x
  3. Step 3: Cross multiply
    87,138.56x = 120,287.85 × 58,882.52
  4. Step 4: Simplify right side
    87,138.56x = 7,082,851,733.38
  5. Step 5: Solve for x
    x = 7,082,851,733.38/87,138.56
  6. Step 6: Final answer
    x = 81,282.63

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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.