Home / 87,937.61-131,918.70-28,761.48

Finding the Fourth Proportional to 87,937.61, 131,918.70 and 28,761.48

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Solution

The fourth proportional to 87,937.61, 131,918.70 and 28,761.48 is: 43,146.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,937.61 : 131,918.70 = 28,761.48 : x
  2. Step 2: Convert to fraction form
    87,937.61/131,918.70 = 28,761.48/x
  3. Step 3: Cross multiply
    87,937.61x = 131,918.70 × 28,761.48
  4. Step 4: Simplify right side
    87,937.61x = 3,794,177,051.68
  5. Step 5: Solve for x
    x = 3,794,177,051.68/87,937.61
  6. Step 6: Final answer
    x = 43,146.24

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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.