Home / 87,934.12-121,242.18-61,098.92

Finding the Fourth Proportional to 87,934.12, 121,242.18 and 61,098.92

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Solution

The fourth proportional to 87,934.12, 121,242.18 and 61,098.92 is: 84,242.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,934.12 : 121,242.18 = 61,098.92 : x
  2. Step 2: Convert to fraction form
    87,934.12/121,242.18 = 61,098.92/x
  3. Step 3: Cross multiply
    87,934.12x = 121,242.18 × 61,098.92
  4. Step 4: Simplify right side
    87,934.12x = 7,407,766,256.45
  5. Step 5: Solve for x
    x = 7,407,766,256.45/87,934.12
  6. Step 6: Final answer
    x = 84,242.23

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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.