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Finding the Fourth Proportional to 79,829.38, 110,215.89 and 49,655.77

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Solution

The fourth proportional to 79,829.38, 110,215.89 and 49,655.77 is: 68,556.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,829.38 : 110,215.89 = 49,655.77 : x
  2. Step 2: Convert to fraction form
    79,829.38/110,215.89 = 49,655.77/x
  3. Step 3: Cross multiply
    79,829.38x = 110,215.89 × 49,655.77
  4. Step 4: Simplify right side
    79,829.38x = 5,472,854,608.65
  5. Step 5: Solve for x
    x = 5,472,854,608.65/79,829.38
  6. Step 6: Final answer
    x = 68,556.90

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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.