Home / 41,107.35-61,642.80-18,909.30

Finding the Fourth Proportional to 41,107.35, 61,642.80 and 18,909.30

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Solution

The fourth proportional to 41,107.35, 61,642.80 and 18,909.30 is: 28,355.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,107.35 : 61,642.80 = 18,909.30 : x
  2. Step 2: Convert to fraction form
    41,107.35/61,642.80 = 18,909.30/x
  3. Step 3: Cross multiply
    41,107.35x = 61,642.80 × 18,909.30
  4. Step 4: Simplify right side
    41,107.35x = 1,165,622,198.04
  5. Step 5: Solve for x
    x = 1,165,622,198.04/41,107.35
  6. Step 6: Final answer
    x = 28,355.57

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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.