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Finding the Fourth Proportional to 79,743.78, 119,576.76 and 45,545.58

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Solution

The fourth proportional to 79,743.78, 119,576.76 and 45,545.58 is: 68,296.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,743.78 : 119,576.76 = 45,545.58 : x
  2. Step 2: Convert to fraction form
    79,743.78/119,576.76 = 45,545.58/x
  3. Step 3: Cross multiply
    79,743.78x = 119,576.76 × 45,545.58
  4. Step 4: Simplify right side
    79,743.78x = 5,446,192,888.72
  5. Step 5: Solve for x
    x = 5,446,192,888.72/79,743.78
  6. Step 6: Final answer
    x = 68,296.15

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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.