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Finding the Fourth Proportional to 79,324.70, 109,437.90 and 50,645.44

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Solution

The fourth proportional to 79,324.70, 109,437.90 and 50,645.44 is: 69,871.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,324.70 : 109,437.90 = 50,645.44 : x
  2. Step 2: Convert to fraction form
    79,324.70/109,437.90 = 50,645.44/x
  3. Step 3: Cross multiply
    79,324.70x = 109,437.90 × 50,645.44
  4. Step 4: Simplify right side
    79,324.70x = 5,542,530,598.18
  5. Step 5: Solve for x
    x = 5,542,530,598.18/79,324.70
  6. Step 6: Final answer
    x = 69,871.43

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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.