Home / 87,825.80-131,693.88-28,623.44

Finding the Fourth Proportional to 87,825.80, 131,693.88 and 28,623.44

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Solution

The fourth proportional to 87,825.80, 131,693.88 and 28,623.44 is: 42,920.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,825.80 : 131,693.88 = 28,623.44 : x
  2. Step 2: Convert to fraction form
    87,825.80/131,693.88 = 28,623.44/x
  3. Step 3: Cross multiply
    87,825.80x = 131,693.88 × 28,623.44
  4. Step 4: Simplify right side
    87,825.80x = 3,769,531,872.55
  5. Step 5: Solve for x
    x = 3,769,531,872.55/87,825.80
  6. Step 6: Final answer
    x = 42,920.55

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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.