Home / 45,659.10-68,429.31-18,609.85

Finding the Fourth Proportional to 45,659.10, 68,429.31 and 18,609.85

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Solution

The fourth proportional to 45,659.10, 68,429.31 and 18,609.85 is: 27,890.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,659.10 : 68,429.31 = 18,609.85 : x
  2. Step 2: Convert to fraction form
    45,659.10/68,429.31 = 18,609.85/x
  3. Step 3: Cross multiply
    45,659.10x = 68,429.31 × 18,609.85
  4. Step 4: Simplify right side
    45,659.10x = 1,273,459,194.70
  5. Step 5: Solve for x
    x = 1,273,459,194.70/45,659.10
  6. Step 6: Final answer
    x = 27,890.59

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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.