Home / 87,832.84-131,747.82-21,272.52

Finding the Fourth Proportional to 87,832.84, 131,747.82 and 21,272.52

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Solution

The fourth proportional to 87,832.84, 131,747.82 and 21,272.52 is: 31,908.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,832.84 : 131,747.82 = 21,272.52 : x
  2. Step 2: Convert to fraction form
    87,832.84/131,747.82 = 21,272.52/x
  3. Step 3: Cross multiply
    87,832.84x = 131,747.82 × 21,272.52
  4. Step 4: Simplify right side
    87,832.84x = 2,802,608,135.91
  5. Step 5: Solve for x
    x = 2,802,608,135.91/87,832.84
  6. Step 6: Final answer
    x = 31,908.43

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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.