Home / 87,106.92-120,251.97-61,633.23

Finding the Fourth Proportional to 87,106.92, 120,251.97 and 61,633.23

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Solution

The fourth proportional to 87,106.92, 120,251.97 and 61,633.23 is: 85,085.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,106.92 : 120,251.97 = 61,633.23 : x
  2. Step 2: Convert to fraction form
    87,106.92/120,251.97 = 61,633.23/x
  3. Step 3: Cross multiply
    87,106.92x = 120,251.97 × 61,633.23
  4. Step 4: Simplify right side
    87,106.92x = 7,411,517,324.96
  5. Step 5: Solve for x
    x = 7,411,517,324.96/87,106.92
  6. Step 6: Final answer
    x = 85,085.29

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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.