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Finding the Fourth Proportional to 80,801.44, 121,154 and 33,379.68

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Solution

The fourth proportional to 80,801.44, 121,154 and 33,379.68 is: 50,049.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,801.44 : 121,154 = 33,379.68 : x
  2. Step 2: Convert to fraction form
    80,801.44/121,154 = 33,379.68/x
  3. Step 3: Cross multiply
    80,801.44x = 121,154 × 33,379.68
  4. Step 4: Simplify right side
    80,801.44x = 4,044,081,750.72
  5. Step 5: Solve for x
    x = 4,044,081,750.72/80,801.44
  6. Step 6: Final answer
    x = 50,049.62

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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.