Home / 81,250.38-121,895.46-27,943.20

Finding the Fourth Proportional to 81,250.38, 121,895.46 and 27,943.20

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Solution

The fourth proportional to 81,250.38, 121,895.46 and 27,943.20 is: 41,921.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,250.38 : 121,895.46 = 27,943.20 : x
  2. Step 2: Convert to fraction form
    81,250.38/121,895.46 = 27,943.20/x
  3. Step 3: Cross multiply
    81,250.38x = 121,895.46 × 27,943.20
  4. Step 4: Simplify right side
    81,250.38x = 3,406,149,217.87
  5. Step 5: Solve for x
    x = 3,406,149,217.87/81,250.38
  6. Step 6: Final answer
    x = 41,921.64

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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.