Home / 87,737.28-121,079.52-50,010.72

Finding the Fourth Proportional to 87,737.28, 121,079.52 and 50,010.72

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Solution

The fourth proportional to 87,737.28, 121,079.52 and 50,010.72 is: 69,015.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,737.28 : 121,079.52 = 50,010.72 : x
  2. Step 2: Convert to fraction form
    87,737.28/121,079.52 = 50,010.72/x
  3. Step 3: Cross multiply
    87,737.28x = 121,079.52 × 50,010.72
  4. Step 4: Simplify right side
    87,737.28x = 6,055,273,972.45
  5. Step 5: Solve for x
    x = 6,055,273,972.45/87,737.28
  6. Step 6: Final answer
    x = 69,015.98

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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.