Home / 54,947.75-75,755.19-39,621.47

Finding the Fourth Proportional to 54,947.75, 75,755.19 and 39,621.47

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Solution

The fourth proportional to 54,947.75, 75,755.19 and 39,621.47 is: 54,625.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,947.75 : 75,755.19 = 39,621.47 : x
  2. Step 2: Convert to fraction form
    54,947.75/75,755.19 = 39,621.47/x
  3. Step 3: Cross multiply
    54,947.75x = 75,755.19 × 39,621.47
  4. Step 4: Simplify right side
    54,947.75x = 3,001,531,757.73
  5. Step 5: Solve for x
    x = 3,001,531,757.73/54,947.75
  6. Step 6: Final answer
    x = 54,625.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.