Home / 87,127.50-120,217.41-51,304.44

Finding the Fourth Proportional to 87,127.50, 120,217.41 and 51,304.44

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Solution

The fourth proportional to 87,127.50, 120,217.41 and 51,304.44 is: 70,789.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,127.50 : 120,217.41 = 51,304.44 : x
  2. Step 2: Convert to fraction form
    87,127.50/120,217.41 = 51,304.44/x
  3. Step 3: Cross multiply
    87,127.50x = 120,217.41 × 51,304.44
  4. Step 4: Simplify right side
    87,127.50x = 6,167,686,898.30
  5. Step 5: Solve for x
    x = 6,167,686,898.30/87,127.50
  6. Step 6: Final answer
    x = 70,789.21

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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.