Home / 82,481.96-123,662.36-26,289.72

Finding the Fourth Proportional to 82,481.96, 123,662.36 and 26,289.72

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Solution

The fourth proportional to 82,481.96, 123,662.36 and 26,289.72 is: 39,415.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,481.96 : 123,662.36 = 26,289.72 : x
  2. Step 2: Convert to fraction form
    82,481.96/123,662.36 = 26,289.72/x
  3. Step 3: Cross multiply
    82,481.96x = 123,662.36 × 26,289.72
  4. Step 4: Simplify right side
    82,481.96x = 3,251,048,818.94
  5. Step 5: Solve for x
    x = 3,251,048,818.94/82,481.96
  6. Step 6: Final answer
    x = 39,415.27

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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.