Home / 80,771.38-121,161.93-25,367.38

Finding the Fourth Proportional to 80,771.38, 121,161.93 and 25,367.38

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Solution

The fourth proportional to 80,771.38, 121,161.93 and 25,367.38 is: 38,052.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,771.38 : 121,161.93 = 25,367.38 : x
  2. Step 2: Convert to fraction form
    80,771.38/121,161.93 = 25,367.38/x
  3. Step 3: Cross multiply
    80,771.38x = 121,161.93 × 25,367.38
  4. Step 4: Simplify right side
    80,771.38x = 3,073,560,719.84
  5. Step 5: Solve for x
    x = 3,073,560,719.84/80,771.38
  6. Step 6: Final answer
    x = 38,052.60

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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.