Home / 87,738.79-121,079.17-47,452.57

Finding the Fourth Proportional to 87,738.79, 121,079.17 and 47,452.57

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Solution

The fourth proportional to 87,738.79, 121,079.17 and 47,452.57 is: 65,484.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,738.79 : 121,079.17 = 47,452.57 : x
  2. Step 2: Convert to fraction form
    87,738.79/121,079.17 = 47,452.57/x
  3. Step 3: Cross multiply
    87,738.79x = 121,079.17 × 47,452.57
  4. Step 4: Simplify right side
    87,738.79x = 5,745,517,789.97
  5. Step 5: Solve for x
    x = 5,745,517,789.97/87,738.79
  6. Step 6: Final answer
    x = 65,484.35

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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.