Home / 80,872.93-121,346.97-30,936.52

Finding the Fourth Proportional to 80,872.93, 121,346.97 and 30,936.52

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Solution

The fourth proportional to 80,872.93, 121,346.97 and 30,936.52 is: 46,419.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,872.93 : 121,346.97 = 30,936.52 : x
  2. Step 2: Convert to fraction form
    80,872.93/121,346.97 = 30,936.52/x
  3. Step 3: Cross multiply
    80,872.93x = 121,346.97 × 30,936.52
  4. Step 4: Simplify right side
    80,872.93x = 3,754,052,964.34
  5. Step 5: Solve for x
    x = 3,754,052,964.34/80,872.93
  6. Step 6: Final answer
    x = 46,419.15

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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.