Home / 87,487.68-131,252.30-28,323.32

Finding the Fourth Proportional to 87,487.68, 131,252.30 and 28,323.32

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Solution

The fourth proportional to 87,487.68, 131,252.30 and 28,323.32 is: 42,491.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,487.68 : 131,252.30 = 28,323.32 : x
  2. Step 2: Convert to fraction form
    87,487.68/131,252.30 = 28,323.32/x
  3. Step 3: Cross multiply
    87,487.68x = 131,252.30 × 28,323.32
  4. Step 4: Simplify right side
    87,487.68x = 3,717,500,893.64
  5. Step 5: Solve for x
    x = 3,717,500,893.64/87,487.68
  6. Step 6: Final answer
    x = 42,491.71

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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.