Home / 79,249.31-109,375.25-49,044.36

Finding the Fourth Proportional to 79,249.31, 109,375.25 and 49,044.36

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Solution

The fourth proportional to 79,249.31, 109,375.25 and 49,044.36 is: 67,688.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,249.31 : 109,375.25 = 49,044.36 : x
  2. Step 2: Convert to fraction form
    79,249.31/109,375.25 = 49,044.36/x
  3. Step 3: Cross multiply
    79,249.31x = 109,375.25 × 49,044.36
  4. Step 4: Simplify right side
    79,249.31x = 5,364,238,890.87
  5. Step 5: Solve for x
    x = 5,364,238,890.87/79,249.31
  6. Step 6: Final answer
    x = 67,688.15

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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.