Home / 87,575.91-131,382.32-28,406.96

Finding the Fourth Proportional to 87,575.91, 131,382.32 and 28,406.96

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Solution

The fourth proportional to 87,575.91, 131,382.32 and 28,406.96 is: 42,616.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,575.91 : 131,382.32 = 28,406.96 : x
  2. Step 2: Convert to fraction form
    87,575.91/131,382.32 = 28,406.96/x
  3. Step 3: Cross multiply
    87,575.91x = 131,382.32 × 28,406.96
  4. Step 4: Simplify right side
    87,575.91x = 3,732,172,495.37
  5. Step 5: Solve for x
    x = 3,732,172,495.37/87,575.91
  6. Step 6: Final answer
    x = 42,616.43

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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.