Home / 80,965.56-121,419.18-34,222.08

Finding the Fourth Proportional to 80,965.56, 121,419.18 and 34,222.08

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Solution

The fourth proportional to 80,965.56, 121,419.18 and 34,222.08 is: 51,320.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,965.56 : 121,419.18 = 34,222.08 : x
  2. Step 2: Convert to fraction form
    80,965.56/121,419.18 = 34,222.08/x
  3. Step 3: Cross multiply
    80,965.56x = 121,419.18 × 34,222.08
  4. Step 4: Simplify right side
    80,965.56x = 4,155,216,891.49
  5. Step 5: Solve for x
    x = 4,155,216,891.49/80,965.56
  6. Step 6: Final answer
    x = 51,320.79

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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.