Home / 80,112.96-120,182.40-33,370.56

Finding the Fourth Proportional to 80,112.96, 120,182.40 and 33,370.56

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Solution

The fourth proportional to 80,112.96, 120,182.40 and 33,370.56 is: 50,061.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,112.96 : 120,182.40 = 33,370.56 : x
  2. Step 2: Convert to fraction form
    80,112.96/120,182.40 = 33,370.56/x
  3. Step 3: Cross multiply
    80,112.96x = 120,182.40 × 33,370.56
  4. Step 4: Simplify right side
    80,112.96x = 4,010,553,990.14
  5. Step 5: Solve for x
    x = 4,010,553,990.14/80,112.96
  6. Step 6: Final answer
    x = 50,061.24

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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.