Home / 80,755.79-121,146.66-34,015.55

Finding the Fourth Proportional to 80,755.79, 121,146.66 and 34,015.55

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Solution

The fourth proportional to 80,755.79, 121,146.66 and 34,015.55 is: 51,028.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,755.79 : 121,146.66 = 34,015.55 : x
  2. Step 2: Convert to fraction form
    80,755.79/121,146.66 = 34,015.55/x
  3. Step 3: Cross multiply
    80,755.79x = 121,146.66 × 34,015.55
  4. Step 4: Simplify right side
    80,755.79x = 4,120,870,270.56
  5. Step 5: Solve for x
    x = 4,120,870,270.56/80,755.79
  6. Step 6: Final answer
    x = 51,028.79

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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.