Home / 87,575.16-131,381.19-28,406.21

Finding the Fourth Proportional to 87,575.16, 131,381.19 and 28,406.21

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Solution

The fourth proportional to 87,575.16, 131,381.19 and 28,406.21 is: 42,615.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,575.16 : 131,381.19 = 28,406.21 : x
  2. Step 2: Convert to fraction form
    87,575.16/131,381.19 = 28,406.21/x
  3. Step 3: Cross multiply
    87,575.16x = 131,381.19 × 28,406.21
  4. Step 4: Simplify right side
    87,575.16x = 3,732,042,309.57
  5. Step 5: Solve for x
    x = 3,732,042,309.57/87,575.16
  6. Step 6: Final answer
    x = 42,615.31

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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.