Home / 87,414.43-120,651.02-55,577.11

Finding the Fourth Proportional to 87,414.43, 120,651.02 and 55,577.11

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Solution

The fourth proportional to 87,414.43, 120,651.02 and 55,577.11 is: 76,708.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,414.43 : 120,651.02 = 55,577.11 : x
  2. Step 2: Convert to fraction form
    87,414.43/120,651.02 = 55,577.11/x
  3. Step 3: Cross multiply
    87,414.43x = 120,651.02 × 55,577.11
  4. Step 4: Simplify right side
    87,414.43x = 6,705,435,010.15
  5. Step 5: Solve for x
    x = 6,705,435,010.15/87,414.43
  6. Step 6: Final answer
    x = 76,708.56

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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.