Home / 87,982.38-121,387.14-49,738.23

Finding the Fourth Proportional to 87,982.38, 121,387.14 and 49,738.23

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Solution

The fourth proportional to 87,982.38, 121,387.14 and 49,738.23 is: 68,622.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,982.38 : 121,387.14 = 49,738.23 : x
  2. Step 2: Convert to fraction form
    87,982.38/121,387.14 = 49,738.23/x
  3. Step 3: Cross multiply
    87,982.38x = 121,387.14 × 49,738.23
  4. Step 4: Simplify right side
    87,982.38x = 6,037,581,488.36
  5. Step 5: Solve for x
    x = 6,037,581,488.36/87,982.38
  6. Step 6: Final answer
    x = 68,622.62

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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.