Home / 81,542.43-122,291.51-22,364.10

Finding the Fourth Proportional to 81,542.43, 122,291.51 and 22,364.10

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Solution

The fourth proportional to 81,542.43, 122,291.51 and 22,364.10 is: 33,540.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,542.43 : 122,291.51 = 22,364.10 : x
  2. Step 2: Convert to fraction form
    81,542.43/122,291.51 = 22,364.10/x
  3. Step 3: Cross multiply
    81,542.43x = 122,291.51 × 22,364.10
  4. Step 4: Simplify right side
    81,542.43x = 2,734,939,446.97
  5. Step 5: Solve for x
    x = 2,734,939,446.97/81,542.43
  6. Step 6: Final answer
    x = 33,540.08

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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.