Home / 87,654.17-131,398.02-28,448.44

Finding the Fourth Proportional to 87,654.17, 131,398.02 and 28,448.44

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Solution

The fourth proportional to 87,654.17, 131,398.02 and 28,448.44 is: 42,645.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,654.17 : 131,398.02 = 28,448.44 : x
  2. Step 2: Convert to fraction form
    87,654.17/131,398.02 = 28,448.44/x
  3. Step 3: Cross multiply
    87,654.17x = 131,398.02 × 28,448.44
  4. Step 4: Simplify right side
    87,654.17x = 3,738,068,031.10
  5. Step 5: Solve for x
    x = 3,738,068,031.10/87,654.17
  6. Step 6: Final answer
    x = 42,645.64

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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.