Home / 87,825.50-131,759.22-28,661.28

Finding the Fourth Proportional to 87,825.50, 131,759.22 and 28,661.28

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Solution

The fourth proportional to 87,825.50, 131,759.22 and 28,661.28 is: 42,998.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,825.50 : 131,759.22 = 28,661.28 : x
  2. Step 2: Convert to fraction form
    87,825.50/131,759.22 = 28,661.28/x
  3. Step 3: Cross multiply
    87,825.50x = 131,759.22 × 28,661.28
  4. Step 4: Simplify right side
    87,825.50x = 3,776,387,897.00
  5. Step 5: Solve for x
    x = 3,776,387,897.00/87,825.50
  6. Step 6: Final answer
    x = 42,998.76

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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.