Home / 49,359.20-74,049.60-19,769.60

Finding the Fourth Proportional to 49,359.20, 74,049.60 and 19,769.60

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Solution

The fourth proportional to 49,359.20, 74,049.60 and 19,769.60 is: 29,658.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,359.20 : 74,049.60 = 19,769.60 : x
  2. Step 2: Convert to fraction form
    49,359.20/74,049.60 = 19,769.60/x
  3. Step 3: Cross multiply
    49,359.20x = 74,049.60 × 19,769.60
  4. Step 4: Simplify right side
    49,359.20x = 1,463,930,972.16
  5. Step 5: Solve for x
    x = 1,463,930,972.16/49,359.20
  6. Step 6: Final answer
    x = 29,658.73

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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.