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Finding the Fourth Proportional to 72,099.65, 108,149.72 and 22,179.41

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Solution

The fourth proportional to 72,099.65, 108,149.72 and 22,179.41 is: 33,269.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,099.65 : 108,149.72 = 22,179.41 : x
  2. Step 2: Convert to fraction form
    72,099.65/108,149.72 = 22,179.41/x
  3. Step 3: Cross multiply
    72,099.65x = 108,149.72 × 22,179.41
  4. Step 4: Simplify right side
    72,099.65x = 2,398,696,329.62
  5. Step 5: Solve for x
    x = 2,398,696,329.62/72,099.65
  6. Step 6: Final answer
    x = 33,269.18

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1.5x scale

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.