Home / 45,835.20-68,759.92-19,540

Finding the Fourth Proportional to 45,835.20, 68,759.92 and 19,540

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Solution

The fourth proportional to 45,835.20, 68,759.92 and 19,540 is: 29,313.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,835.20 : 68,759.92 = 19,540 : x
  2. Step 2: Convert to fraction form
    45,835.20/68,759.92 = 19,540/x
  3. Step 3: Cross multiply
    45,835.20x = 68,759.92 × 19,540
  4. Step 4: Simplify right side
    45,835.20x = 1,343,568,836.80
  5. Step 5: Solve for x
    x = 1,343,568,836.80/45,835.20
  6. Step 6: Final answer
    x = 29,313.04

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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.