Home / 87,447.46-131,175.29-28,287.74

Finding the Fourth Proportional to 87,447.46, 131,175.29 and 28,287.74

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Solution

The fourth proportional to 87,447.46, 131,175.29 and 28,287.74 is: 42,432.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,447.46 : 131,175.29 = 28,287.74 : x
  2. Step 2: Convert to fraction form
    87,447.46/131,175.29 = 28,287.74/x
  3. Step 3: Cross multiply
    87,447.46x = 131,175.29 × 28,287.74
  4. Step 4: Simplify right side
    87,447.46x = 3,710,652,497.94
  5. Step 5: Solve for x
    x = 3,710,652,497.94/87,447.46
  6. Step 6: Final answer
    x = 42,432.94

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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.