Home / 80,742.70-121,119.52-27,440.04

Finding the Fourth Proportional to 80,742.70, 121,119.52 and 27,440.04

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Solution

The fourth proportional to 80,742.70, 121,119.52 and 27,440.04 is: 41,161.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,742.70 : 121,119.52 = 27,440.04 : x
  2. Step 2: Convert to fraction form
    80,742.70/121,119.52 = 27,440.04/x
  3. Step 3: Cross multiply
    80,742.70x = 121,119.52 × 27,440.04
  4. Step 4: Simplify right side
    80,742.70x = 3,323,524,473.58
  5. Step 5: Solve for x
    x = 3,323,524,473.58/80,742.70
  6. Step 6: Final answer
    x = 41,161.92

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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.