Home / 87,229.38-120,255.61-58,890.18

Finding the Fourth Proportional to 87,229.38, 120,255.61 and 58,890.18

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Solution

The fourth proportional to 87,229.38, 120,255.61 and 58,890.18 is: 81,186.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,229.38 : 120,255.61 = 58,890.18 : x
  2. Step 2: Convert to fraction form
    87,229.38/120,255.61 = 58,890.18/x
  3. Step 3: Cross multiply
    87,229.38x = 120,255.61 × 58,890.18
  4. Step 4: Simplify right side
    87,229.38x = 7,081,874,518.91
  5. Step 5: Solve for x
    x = 7,081,874,518.91/87,229.38
  6. Step 6: Final answer
    x = 81,186.80

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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.