Home / 43,418.90-65,126.36-18,107.96

Finding the Fourth Proportional to 43,418.90, 65,126.36 and 18,107.96

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Solution

The fourth proportional to 43,418.90, 65,126.36 and 18,107.96 is: 27,161.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,418.90 : 65,126.36 = 18,107.96 : x
  2. Step 2: Convert to fraction form
    43,418.90/65,126.36 = 18,107.96/x
  3. Step 3: Cross multiply
    43,418.90x = 65,126.36 × 18,107.96
  4. Step 4: Simplify right side
    43,418.90x = 1,179,305,105.65
  5. Step 5: Solve for x
    x = 1,179,305,105.65/43,418.90
  6. Step 6: Final answer
    x = 27,161.10

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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.