Home / 87,380.17-120,589.02-49,151.75

Finding the Fourth Proportional to 87,380.17, 120,589.02 and 49,151.75

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Solution

The fourth proportional to 87,380.17, 120,589.02 and 49,151.75 is: 67,831.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,380.17 : 120,589.02 = 49,151.75 : x
  2. Step 2: Convert to fraction form
    87,380.17/120,589.02 = 49,151.75/x
  3. Step 3: Cross multiply
    87,380.17x = 120,589.02 × 49,151.75
  4. Step 4: Simplify right side
    87,380.17x = 5,927,160,760.84
  5. Step 5: Solve for x
    x = 5,927,160,760.84/87,380.17
  6. Step 6: Final answer
    x = 67,831.88

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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.