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Finding the Fourth Proportional to 84,379.56, 126,576.60 and 22,050

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Solution

The fourth proportional to 84,379.56, 126,576.60 and 22,050 is: 33,076.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,379.56 : 126,576.60 = 22,050 : x
  2. Step 2: Convert to fraction form
    84,379.56/126,576.60 = 22,050/x
  3. Step 3: Cross multiply
    84,379.56x = 126,576.60 × 22,050
  4. Step 4: Simplify right side
    84,379.56x = 2,791,014,030
  5. Step 5: Solve for x
    x = 2,791,014,030/84,379.56
  6. Step 6: Final answer
    x = 33,076.90

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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.