Home / 81,738.76-122,609.68-22,576

Finding the Fourth Proportional to 81,738.76, 122,609.68 and 22,576

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Solution

The fourth proportional to 81,738.76, 122,609.68 and 22,576 is: 33,864.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,738.76 : 122,609.68 = 22,576 : x
  2. Step 2: Convert to fraction form
    81,738.76/122,609.68 = 22,576/x
  3. Step 3: Cross multiply
    81,738.76x = 122,609.68 × 22,576
  4. Step 4: Simplify right side
    81,738.76x = 2,768,036,135.68
  5. Step 5: Solve for x
    x = 2,768,036,135.68/81,738.76
  6. Step 6: Final answer
    x = 33,864.43

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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.