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Finding the Fourth Proportional to 68,922, 95,067 and 49,769.88

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Solution

The fourth proportional to 68,922, 95,067 and 49,769.88 is: 68,649.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,922 : 95,067 = 49,769.88 : x
  2. Step 2: Convert to fraction form
    68,922/95,067 = 49,769.88/x
  3. Step 3: Cross multiply
    68,922x = 95,067 × 49,769.88
  4. Step 4: Simplify right side
    68,922x = 4,731,473,181.96
  5. Step 5: Solve for x
    x = 4,731,473,181.96/68,922
  6. Step 6: Final answer
    x = 68,649.68

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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.