Home / 54,612.38-81,918.42-31,222.41

Finding the Fourth Proportional to 54,612.38, 81,918.42 and 31,222.41

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Solution

The fourth proportional to 54,612.38, 81,918.42 and 31,222.41 is: 46,833.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,612.38 : 81,918.42 = 31,222.41 : x
  2. Step 2: Convert to fraction form
    54,612.38/81,918.42 = 31,222.41/x
  3. Step 3: Cross multiply
    54,612.38x = 81,918.42 × 31,222.41
  4. Step 4: Simplify right side
    54,612.38x = 2,557,690,495.79
  5. Step 5: Solve for x
    x = 2,557,690,495.79/54,612.38
  6. Step 6: Final answer
    x = 46,833.53

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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.