Home / 87,897.96-131,857.88-28,717.74

Finding the Fourth Proportional to 87,897.96, 131,857.88 and 28,717.74

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Solution

The fourth proportional to 87,897.96, 131,857.88 and 28,717.74 is: 43,080.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,897.96 : 131,857.88 = 28,717.74 : x
  2. Step 2: Convert to fraction form
    87,897.96/131,857.88 = 28,717.74/x
  3. Step 3: Cross multiply
    87,897.96x = 131,857.88 × 28,717.74
  4. Step 4: Simplify right side
    87,897.96x = 3,786,660,171.20
  5. Step 5: Solve for x
    x = 3,786,660,171.20/87,897.96
  6. Step 6: Final answer
    x = 43,080.18

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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.