Home / 81,022.38-121,576.24-41,579.50

Finding the Fourth Proportional to 81,022.38, 121,576.24 and 41,579.50

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Solution

The fourth proportional to 81,022.38, 121,576.24 and 41,579.50 is: 62,391.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,022.38 : 121,576.24 = 41,579.50 : x
  2. Step 2: Convert to fraction form
    81,022.38/121,576.24 = 41,579.50/x
  3. Step 3: Cross multiply
    81,022.38x = 121,576.24 × 41,579.50
  4. Step 4: Simplify right side
    81,022.38x = 5,055,079,271.08
  5. Step 5: Solve for x
    x = 5,055,079,271.08/81,022.38
  6. Step 6: Final answer
    x = 62,391.15

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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.