Home / 87,881.61-131,829.25-28,723.26

Finding the Fourth Proportional to 87,881.61, 131,829.25 and 28,723.26

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Solution

The fourth proportional to 87,881.61, 131,829.25 and 28,723.26 is: 43,087.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,881.61 : 131,829.25 = 28,723.26 : x
  2. Step 2: Convert to fraction form
    87,881.61/131,829.25 = 28,723.26/x
  3. Step 3: Cross multiply
    87,881.61x = 131,829.25 × 28,723.26
  4. Step 4: Simplify right side
    87,881.61x = 3,786,566,154.77
  5. Step 5: Solve for x
    x = 3,786,566,154.77/87,881.61
  6. Step 6: Final answer
    x = 43,087.13

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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.