Home / 87,375.00-120,576.40-49,140.88

Finding the Fourth Proportional to 87,375.00, 120,576.40 and 49,140.88

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Solution

The fourth proportional to 87,375.00, 120,576.40 and 49,140.88 is: 67,813.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,375.00 : 120,576.40 = 49,140.88 : x
  2. Step 2: Convert to fraction form
    87,375.00/120,576.40 = 49,140.88/x
  3. Step 3: Cross multiply
    87,375.00x = 120,576.40 × 49,140.88
  4. Step 4: Simplify right side
    87,375.00x = 5,925,229,978.94
  5. Step 5: Solve for x
    x = 5,925,229,978.94/87,375.00
  6. Step 6: Final answer
    x = 67,813.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.