Home / 87,851.13-131,765.76-28,681.85

Finding the Fourth Proportional to 87,851.13, 131,765.76 and 28,681.85

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Solution

The fourth proportional to 87,851.13, 131,765.76 and 28,681.85 is: 43,019.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,851.13 : 131,765.76 = 28,681.85 : x
  2. Step 2: Convert to fraction form
    87,851.13/131,765.76 = 28,681.85/x
  3. Step 3: Cross multiply
    87,851.13x = 131,765.76 × 28,681.85
  4. Step 4: Simplify right side
    87,851.13x = 3,779,285,104.63
  5. Step 5: Solve for x
    x = 3,779,285,104.63/87,851.13
  6. Step 6: Final answer
    x = 43,019.20

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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.