Home / 54,257.72-81,288.16-40,061.36

Finding the Fourth Proportional to 54,257.72, 81,288.16 and 40,061.36

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Solution

The fourth proportional to 54,257.72, 81,288.16 and 40,061.36 is: 60,019.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,257.72 : 81,288.16 = 40,061.36 : x
  2. Step 2: Convert to fraction form
    54,257.72/81,288.16 = 40,061.36/x
  3. Step 3: Cross multiply
    54,257.72x = 81,288.16 × 40,061.36
  4. Step 4: Simplify right side
    54,257.72x = 3,256,514,344.56
  5. Step 5: Solve for x
    x = 3,256,514,344.56/54,257.72
  6. Step 6: Final answer
    x = 60,019.38

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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.