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Finding the Fourth Proportional to 80,149.08, 120,234.54 and 33,391

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Solution

The fourth proportional to 80,149.08, 120,234.54 and 33,391 is: 50,091.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,149.08 : 120,234.54 = 33,391 : x
  2. Step 2: Convert to fraction form
    80,149.08/120,234.54 = 33,391/x
  3. Step 3: Cross multiply
    80,149.08x = 120,234.54 × 33,391
  4. Step 4: Simplify right side
    80,149.08x = 4,014,751,525.14
  5. Step 5: Solve for x
    x = 4,014,751,525.14/80,149.08
  6. Step 6: Final answer
    x = 50,091.05

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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.