Home / 54,042.38-81,007.06-18,491.76

Finding the Fourth Proportional to 54,042.38, 81,007.06 and 18,491.76

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Solution

The fourth proportional to 54,042.38, 81,007.06 and 18,491.76 is: 27,718.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,042.38 : 81,007.06 = 18,491.76 : x
  2. Step 2: Convert to fraction form
    54,042.38/81,007.06 = 18,491.76/x
  3. Step 3: Cross multiply
    54,042.38x = 81,007.06 × 18,491.76
  4. Step 4: Simplify right side
    54,042.38x = 1,497,963,065.60
  5. Step 5: Solve for x
    x = 1,497,963,065.60/54,042.38
  6. Step 6: Final answer
    x = 27,718.31

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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.