Home / 87,738.29-121,078.49-47,452.10

Finding the Fourth Proportional to 87,738.29, 121,078.49 and 47,452.10

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Solution

The fourth proportional to 87,738.29, 121,078.49 and 47,452.10 is: 65,483.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,738.29 : 121,078.49 = 47,452.10 : x
  2. Step 2: Convert to fraction form
    87,738.29/121,078.49 = 47,452.10/x
  3. Step 3: Cross multiply
    87,738.29x = 121,078.49 × 47,452.10
  4. Step 4: Simplify right side
    87,738.29x = 5,745,427,772.68
  5. Step 5: Solve for x
    x = 5,745,427,772.68/87,738.29
  6. Step 6: Final answer
    x = 65,483.70

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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.