Home / 87,738.59-121,079.25-47,452.35

Finding the Fourth Proportional to 87,738.59, 121,079.25 and 47,452.35

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Solution

The fourth proportional to 87,738.59, 121,079.25 and 47,452.35 is: 65,484.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,738.59 : 121,079.25 = 47,452.35 : x
  2. Step 2: Convert to fraction form
    87,738.59/121,079.25 = 47,452.35/x
  3. Step 3: Cross multiply
    87,738.59x = 121,079.25 × 47,452.35
  4. Step 4: Simplify right side
    87,738.59x = 5,745,494,948.74
  5. Step 5: Solve for x
    x = 5,745,494,948.74/87,738.59
  6. Step 6: Final answer
    x = 65,484.24

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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.