Home / 54,179.43-74,727.68-39,121.80

Finding the Fourth Proportional to 54,179.43, 74,727.68 and 39,121.80

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Solution

The fourth proportional to 54,179.43, 74,727.68 and 39,121.80 is: 53,959.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,179.43 : 74,727.68 = 39,121.80 : x
  2. Step 2: Convert to fraction form
    54,179.43/74,727.68 = 39,121.80/x
  3. Step 3: Cross multiply
    54,179.43x = 74,727.68 × 39,121.80
  4. Step 4: Simplify right side
    54,179.43x = 2,923,481,155.82
  5. Step 5: Solve for x
    x = 2,923,481,155.82/54,179.43
  6. Step 6: Final answer
    x = 53,959.25

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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.