Home / 54,033.72-81,054.48-20,753.79

Finding the Fourth Proportional to 54,033.72, 81,054.48 and 20,753.79

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Solution

The fourth proportional to 54,033.72, 81,054.48 and 20,753.79 is: 31,132.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,033.72 : 81,054.48 = 20,753.79 : x
  2. Step 2: Convert to fraction form
    54,033.72/81,054.48 = 20,753.79/x
  3. Step 3: Cross multiply
    54,033.72x = 81,054.48 × 20,753.79
  4. Step 4: Simplify right side
    54,033.72x = 1,682,187,656.48
  5. Step 5: Solve for x
    x = 1,682,187,656.48/54,033.72
  6. Step 6: Final answer
    x = 31,132.18

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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.