Home / 87,835.68-121,213.89-49,073.58

Finding the Fourth Proportional to 87,835.68, 121,213.89 and 49,073.58

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Solution

The fourth proportional to 87,835.68, 121,213.89 and 49,073.58 is: 67,721.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,835.68 : 121,213.89 = 49,073.58 : x
  2. Step 2: Convert to fraction form
    87,835.68/121,213.89 = 49,073.58/x
  3. Step 3: Cross multiply
    87,835.68x = 121,213.89 × 49,073.58
  4. Step 4: Simplify right side
    87,835.68x = 5,948,399,528.03
  5. Step 5: Solve for x
    x = 5,948,399,528.03/87,835.68
  6. Step 6: Final answer
    x = 67,721.90

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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.