Home / 87,767.55-131,664.98-28,589.45

Finding the Fourth Proportional to 87,767.55, 131,664.98 and 28,589.45

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Solution

The fourth proportional to 87,767.55, 131,664.98 and 28,589.45 is: 42,888.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,767.55 : 131,664.98 = 28,589.45 : x
  2. Step 2: Convert to fraction form
    87,767.55/131,664.98 = 28,589.45/x
  3. Step 3: Cross multiply
    87,767.55x = 131,664.98 × 28,589.45
  4. Step 4: Simplify right side
    87,767.55x = 3,764,228,775.61
  5. Step 5: Solve for x
    x = 3,764,228,775.61/87,767.55
  6. Step 6: Final answer
    x = 42,888.62

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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.