Home / 54,218.90-81,324.30-22,620.80

Finding the Fourth Proportional to 54,218.90, 81,324.30 and 22,620.80

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Solution

The fourth proportional to 54,218.90, 81,324.30 and 22,620.80 is: 33,929.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,218.90 : 81,324.30 = 22,620.80 : x
  2. Step 2: Convert to fraction form
    54,218.90/81,324.30 = 22,620.80/x
  3. Step 3: Cross multiply
    54,218.90x = 81,324.30 × 22,620.80
  4. Step 4: Simplify right side
    54,218.90x = 1,839,620,725.44
  5. Step 5: Solve for x
    x = 1,839,620,725.44/54,218.90
  6. Step 6: Final answer
    x = 33,929.51

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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.