Home / 108,321.24-162,507.78-54,879.96

Finding the Fourth Proportional to 108,321.24, 162,507.78 and 54,879.96

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Solution

The fourth proportional to 108,321.24, 162,507.78 and 54,879.96 is: 82,333.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,321.24 : 162,507.78 = 54,879.96 : x
  2. Step 2: Convert to fraction form
    108,321.24/162,507.78 = 54,879.96/x
  3. Step 3: Cross multiply
    108,321.24x = 162,507.78 × 54,879.96
  4. Step 4: Simplify right side
    108,321.24x = 8,918,420,466.09
  5. Step 5: Solve for x
    x = 8,918,420,466.09/108,321.24
  6. Step 6: Final answer
    x = 82,333.07

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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.