Home / 108,579.78-162,896.04-55,140.48

Finding the Fourth Proportional to 108,579.78, 162,896.04 and 55,140.48

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Solution

The fourth proportional to 108,579.78, 162,896.04 and 55,140.48 is: 82,724.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,579.78 : 162,896.04 = 55,140.48 : x
  2. Step 2: Convert to fraction form
    108,579.78/162,896.04 = 55,140.48/x
  3. Step 3: Cross multiply
    108,579.78x = 162,896.04 × 55,140.48
  4. Step 4: Simplify right side
    108,579.78x = 8,982,165,835.70
  5. Step 5: Solve for x
    x = 8,982,165,835.70/108,579.78
  6. Step 6: Final answer
    x = 82,724.11

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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.