Home / 87,853.33-131,778.82-21,294.04

Finding the Fourth Proportional to 87,853.33, 131,778.82 and 21,294.04

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Solution

The fourth proportional to 87,853.33, 131,778.82 and 21,294.04 is: 31,940.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,853.33 : 131,778.82 = 21,294.04 : x
  2. Step 2: Convert to fraction form
    87,853.33/131,778.82 = 21,294.04/x
  3. Step 3: Cross multiply
    87,853.33x = 131,778.82 × 21,294.04
  4. Step 4: Simplify right side
    87,853.33x = 2,806,103,288.71
  5. Step 5: Solve for x
    x = 2,806,103,288.71/87,853.33
  6. Step 6: Final answer
    x = 31,940.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.