Home / 87,731.68-131,615.29-28,551.46

Finding the Fourth Proportional to 87,731.68, 131,615.29 and 28,551.46

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Solution

The fourth proportional to 87,731.68, 131,615.29 and 28,551.46 is: 42,832.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,731.68 : 131,615.29 = 28,551.46 : x
  2. Step 2: Convert to fraction form
    87,731.68/131,615.29 = 28,551.46/x
  3. Step 3: Cross multiply
    87,731.68x = 131,615.29 × 28,551.46
  4. Step 4: Simplify right side
    87,731.68x = 3,757,808,687.82
  5. Step 5: Solve for x
    x = 3,757,808,687.82/87,731.68
  6. Step 6: Final answer
    x = 42,832.97

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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.