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Finding the Fourth Proportional to 49,148.80, 73,732.80 and 19,561.60

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Solution

The fourth proportional to 49,148.80, 73,732.80 and 19,561.60 is: 29,346.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,148.80 : 73,732.80 = 19,561.60 : x
  2. Step 2: Convert to fraction form
    49,148.80/73,732.80 = 19,561.60/x
  3. Step 3: Cross multiply
    49,148.80x = 73,732.80 × 19,561.60
  4. Step 4: Simplify right side
    49,148.80x = 1,442,331,540.48
  5. Step 5: Solve for x
    x = 1,442,331,540.48/49,148.80
  6. Step 6: Final answer
    x = 29,346.22

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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.