Home / 49,890.12-68,849.17-29,758.78

Finding the Fourth Proportional to 49,890.12, 68,849.17 and 29,758.78

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Solution

The fourth proportional to 49,890.12, 68,849.17 and 29,758.78 is: 41,067.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,890.12 : 68,849.17 = 29,758.78 : x
  2. Step 2: Convert to fraction form
    49,890.12/68,849.17 = 29,758.78/x
  3. Step 3: Cross multiply
    49,890.12x = 68,849.17 × 29,758.78
  4. Step 4: Simplify right side
    49,890.12x = 2,048,867,303.21
  5. Step 5: Solve for x
    x = 2,048,867,303.21/49,890.12
  6. Step 6: Final answer
    x = 41,067.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.