Home / 87,627.28-120,922.82-49,383.83

Finding the Fourth Proportional to 87,627.28, 120,922.82 and 49,383.83

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Solution

The fourth proportional to 87,627.28, 120,922.82 and 49,383.83 is: 68,148.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,627.28 : 120,922.82 = 49,383.83 : x
  2. Step 2: Convert to fraction form
    87,627.28/120,922.82 = 49,383.83/x
  3. Step 3: Cross multiply
    87,627.28x = 120,922.82 × 49,383.83
  4. Step 4: Simplify right side
    87,627.28x = 5,971,631,511.66
  5. Step 5: Solve for x
    x = 5,971,631,511.66/87,627.28
  6. Step 6: Final answer
    x = 68,148.09

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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.