Home / 87,438.88-120,650.61-49,193.11

Finding the Fourth Proportional to 87,438.88, 120,650.61 and 49,193.11

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Solution

The fourth proportional to 87,438.88, 120,650.61 and 49,193.11 is: 67,878.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,438.88 : 120,650.61 = 49,193.11 : x
  2. Step 2: Convert to fraction form
    87,438.88/120,650.61 = 49,193.11/x
  3. Step 3: Cross multiply
    87,438.88x = 120,650.61 × 49,193.11
  4. Step 4: Simplify right side
    87,438.88x = 5,935,178,729.30
  5. Step 5: Solve for x
    x = 5,935,178,729.30/87,438.88
  6. Step 6: Final answer
    x = 67,878.03

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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.