Home / 54,042.16-81,007.72-20,753.24

Finding the Fourth Proportional to 54,042.16, 81,007.72 and 20,753.24

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Solution

The fourth proportional to 54,042.16, 81,007.72 and 20,753.24 is: 31,108.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,042.16 : 81,007.72 = 20,753.24 : x
  2. Step 2: Convert to fraction form
    54,042.16/81,007.72 = 20,753.24/x
  3. Step 3: Cross multiply
    54,042.16x = 81,007.72 × 20,753.24
  4. Step 4: Simplify right side
    54,042.16x = 1,681,172,655.01
  5. Step 5: Solve for x
    x = 1,681,172,655.01/54,042.16
  6. Step 6: Final answer
    x = 31,108.54

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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.