Home / 87,341.88-120,529.17-49,101.78

Finding the Fourth Proportional to 87,341.88, 120,529.17 and 49,101.78

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Solution

The fourth proportional to 87,341.88, 120,529.17 and 49,101.78 is: 67,758.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,341.88 : 120,529.17 = 49,101.78 : x
  2. Step 2: Convert to fraction form
    87,341.88/120,529.17 = 49,101.78/x
  3. Step 3: Cross multiply
    87,341.88x = 120,529.17 × 49,101.78
  4. Step 4: Simplify right side
    87,341.88x = 5,918,196,788.92
  5. Step 5: Solve for x
    x = 5,918,196,788.92/87,341.88
  6. Step 6: Final answer
    x = 67,758.98

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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.