Home / 34,105.38-51,140.92-19,878.43

Finding the Fourth Proportional to 34,105.38, 51,140.92 and 19,878.43

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Solution

The fourth proportional to 34,105.38, 51,140.92 and 19,878.43 is: 29,807.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,105.38 : 51,140.92 = 19,878.43 : x
  2. Step 2: Convert to fraction form
    34,105.38/51,140.92 = 19,878.43/x
  3. Step 3: Cross multiply
    34,105.38x = 51,140.92 × 19,878.43
  4. Step 4: Simplify right side
    34,105.38x = 1,016,601,198.36
  5. Step 5: Solve for x
    x = 1,016,601,198.36/34,105.38
  6. Step 6: Final answer
    x = 29,807.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.