Home / 87,742.41-121,084.17-47,456.22

Finding the Fourth Proportional to 87,742.41, 121,084.17 and 47,456.22

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Solution

The fourth proportional to 87,742.41, 121,084.17 and 47,456.22 is: 65,489.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,742.41 : 121,084.17 = 47,456.22 : x
  2. Step 2: Convert to fraction form
    87,742.41/121,084.17 = 47,456.22/x
  3. Step 3: Cross multiply
    87,742.41x = 121,084.17 × 47,456.22
  4. Step 4: Simplify right side
    87,742.41x = 5,746,197,010.04
  5. Step 5: Solve for x
    x = 5,746,197,010.04/87,742.41
  6. Step 6: Final answer
    x = 65,489.39

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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.