Home / 54,107.60-81,161.39-20,843.33

Finding the Fourth Proportional to 54,107.60, 81,161.39 and 20,843.33

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Solution

The fourth proportional to 54,107.60, 81,161.39 and 20,843.33 is: 31,264.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,107.60 : 81,161.39 = 20,843.33 : x
  2. Step 2: Convert to fraction form
    54,107.60/81,161.39 = 20,843.33/x
  3. Step 3: Cross multiply
    54,107.60x = 81,161.39 × 20,843.33
  4. Step 4: Simplify right side
    54,107.60x = 1,691,673,281.33
  5. Step 5: Solve for x
    x = 1,691,673,281.33/54,107.60
  6. Step 6: Final answer
    x = 31,264.99

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1.5x scale

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.