Home / 87,825.20-131,758.75-28,660.97

Finding the Fourth Proportional to 87,825.20, 131,758.75 and 28,660.97

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Solution

The fourth proportional to 87,825.20, 131,758.75 and 28,660.97 is: 42,998.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,825.20 : 131,758.75 = 28,660.97 : x
  2. Step 2: Convert to fraction form
    87,825.20/131,758.75 = 28,660.97/x
  3. Step 3: Cross multiply
    87,825.20x = 131,758.75 × 28,660.97
  4. Step 4: Simplify right side
    87,825.20x = 3,776,333,946.21
  5. Step 5: Solve for x
    x = 3,776,333,946.21/87,825.20
  6. Step 6: Final answer
    x = 42,998.30

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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.