Home / 49,388.88-68,167.26-31,479.78

Finding the Fourth Proportional to 49,388.88, 68,167.26 and 31,479.78

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Solution

The fourth proportional to 49,388.88, 68,167.26 and 31,479.78 is: 43,448.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,388.88 : 68,167.26 = 31,479.78 : x
  2. Step 2: Convert to fraction form
    49,388.88/68,167.26 = 31,479.78/x
  3. Step 3: Cross multiply
    49,388.88x = 68,167.26 × 31,479.78
  4. Step 4: Simplify right side
    49,388.88x = 2,145,890,348.00
  5. Step 5: Solve for x
    x = 2,145,890,348.00/49,388.88
  6. Step 6: Final answer
    x = 43,448.86

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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.