Home / 87,207.60-120,346.74-49,481.76

Finding the Fourth Proportional to 87,207.60, 120,346.74 and 49,481.76

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Solution

The fourth proportional to 87,207.60, 120,346.74 and 49,481.76 is: 68,284.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,207.60 : 120,346.74 = 49,481.76 : x
  2. Step 2: Convert to fraction form
    87,207.60/120,346.74 = 49,481.76/x
  3. Step 3: Cross multiply
    87,207.60x = 120,346.74 × 49,481.76
  4. Step 4: Simplify right side
    87,207.60x = 5,954,968,505.46
  5. Step 5: Solve for x
    x = 5,954,968,505.46/87,207.60
  6. Step 6: Final answer
    x = 68,284.97

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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.