Home / 87,196.44-120,335.04-51,387.96

Finding the Fourth Proportional to 87,196.44, 120,335.04 and 51,387.96

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Solution

The fourth proportional to 87,196.44, 120,335.04 and 51,387.96 is: 70,917.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,196.44 : 120,335.04 = 51,387.96 : x
  2. Step 2: Convert to fraction form
    87,196.44/120,335.04 = 51,387.96/x
  3. Step 3: Cross multiply
    87,196.44x = 120,335.04 × 51,387.96
  4. Step 4: Simplify right side
    87,196.44x = 6,183,772,222.12
  5. Step 5: Solve for x
    x = 6,183,772,222.12/87,196.44
  6. Step 6: Final answer
    x = 70,917.71

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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.