Home / 87,331.73-120,468.38-55,010.70

Finding the Fourth Proportional to 87,331.73, 120,468.38 and 55,010.70

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Solution

The fourth proportional to 87,331.73, 120,468.38 and 55,010.70 is: 75,883.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,331.73 : 120,468.38 = 55,010.70 : x
  2. Step 2: Convert to fraction form
    87,331.73/120,468.38 = 55,010.70/x
  3. Step 3: Cross multiply
    87,331.73x = 120,468.38 × 55,010.70
  4. Step 4: Simplify right side
    87,331.73x = 6,627,049,636.61
  5. Step 5: Solve for x
    x = 6,627,049,636.61/87,331.73
  6. Step 6: Final answer
    x = 75,883.65

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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.