Home / 49,661.31-74,491.33-12,221.85

Finding the Fourth Proportional to 49,661.31, 74,491.33 and 12,221.85

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Solution

The fourth proportional to 49,661.31, 74,491.33 and 12,221.85 is: 18,332.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,661.31 : 74,491.33 = 12,221.85 : x
  2. Step 2: Convert to fraction form
    49,661.31/74,491.33 = 12,221.85/x
  3. Step 3: Cross multiply
    49,661.31x = 74,491.33 × 12,221.85
  4. Step 4: Simplify right side
    49,661.31x = 910,421,861.56
  5. Step 5: Solve for x
    x = 910,421,861.56/49,661.31
  6. Step 6: Final answer
    x = 18,332.62

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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.