Home / 87,679.20-131,421.60-37,750.80

Finding the Fourth Proportional to 87,679.20, 131,421.60 and 37,750.80

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Solution

The fourth proportional to 87,679.20, 131,421.60 and 37,750.80 is: 56,584.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,679.20 : 131,421.60 = 37,750.80 : x
  2. Step 2: Convert to fraction form
    87,679.20/131,421.60 = 37,750.80/x
  3. Step 3: Cross multiply
    87,679.20x = 131,421.60 × 37,750.80
  4. Step 4: Simplify right side
    87,679.20x = 4,961,270,537.28
  5. Step 5: Solve for x
    x = 4,961,270,537.28/87,679.20
  6. Step 6: Final answer
    x = 56,584.35

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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.