Home / 80,660.18-120,999.99-33,906.98

Finding the Fourth Proportional to 80,660.18, 120,999.99 and 33,906.98

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Solution

The fourth proportional to 80,660.18, 120,999.99 and 33,906.98 is: 50,864.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,660.18 : 120,999.99 = 33,906.98 : x
  2. Step 2: Convert to fraction form
    80,660.18/120,999.99 = 33,906.98/x
  3. Step 3: Cross multiply
    80,660.18x = 120,999.99 × 33,906.98
  4. Step 4: Simplify right side
    80,660.18x = 4,102,744,240.93
  5. Step 5: Solve for x
    x = 4,102,744,240.93/80,660.18
  6. Step 6: Final answer
    x = 50,864.56

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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.