Home / 80,161.72-120,241.36-27,571.66

Finding the Fourth Proportional to 80,161.72, 120,241.36 and 27,571.66

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Solution

The fourth proportional to 80,161.72, 120,241.36 and 27,571.66 is: 41,357.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,161.72 : 120,241.36 = 27,571.66 : x
  2. Step 2: Convert to fraction form
    80,161.72/120,241.36 = 27,571.66/x
  3. Step 3: Cross multiply
    80,161.72x = 120,241.36 × 27,571.66
  4. Step 4: Simplify right side
    80,161.72x = 3,315,253,895.86
  5. Step 5: Solve for x
    x = 3,315,253,895.86/80,161.72
  6. Step 6: Final answer
    x = 41,357.07

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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.