Home / 54,021.53-74,542.38-31,356.92

Finding the Fourth Proportional to 54,021.53, 74,542.38 and 31,356.92

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Solution

The fourth proportional to 54,021.53, 74,542.38 and 31,356.92 is: 43,268.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,021.53 : 74,542.38 = 31,356.92 : x
  2. Step 2: Convert to fraction form
    54,021.53/74,542.38 = 31,356.92/x
  3. Step 3: Cross multiply
    54,021.53x = 74,542.38 × 31,356.92
  4. Step 4: Simplify right side
    54,021.53x = 2,337,419,515.04
  5. Step 5: Solve for x
    x = 2,337,419,515.04/54,021.53
  6. Step 6: Final answer
    x = 43,268.29

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1.5x scale

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.