Home / 54,537.20-81,660-31,131.44

Finding the Fourth Proportional to 54,537.20, 81,660 and 31,131.44

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Solution

The fourth proportional to 54,537.20, 81,660 and 31,131.44 is: 46,613.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,537.20 : 81,660 = 31,131.44 : x
  2. Step 2: Convert to fraction form
    54,537.20/81,660 = 31,131.44/x
  3. Step 3: Cross multiply
    54,537.20x = 81,660 × 31,131.44
  4. Step 4: Simplify right side
    54,537.20x = 2,542,193,390.40
  5. Step 5: Solve for x
    x = 2,542,193,390.40/54,537.20
  6. Step 6: Final answer
    x = 46,613.93

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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.