Home / 81,028.56-121,500.72-36,634.08

Finding the Fourth Proportional to 81,028.56, 121,500.72 and 36,634.08

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Solution

The fourth proportional to 81,028.56, 121,500.72 and 36,634.08 is: 54,932.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,028.56 : 121,500.72 = 36,634.08 : x
  2. Step 2: Convert to fraction form
    81,028.56/121,500.72 = 36,634.08/x
  3. Step 3: Cross multiply
    81,028.56x = 121,500.72 × 36,634.08
  4. Step 4: Simplify right side
    81,028.56x = 4,451,067,096.54
  5. Step 5: Solve for x
    x = 4,451,067,096.54/81,028.56
  6. Step 6: Final answer
    x = 54,932.08

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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.