Home / 49,780.44-68,644.26-31,876.20

Finding the Fourth Proportional to 49,780.44, 68,644.26 and 31,876.20

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Solution

The fourth proportional to 49,780.44, 68,644.26 and 31,876.20 is: 43,955.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,780.44 : 68,644.26 = 31,876.20 : x
  2. Step 2: Convert to fraction form
    49,780.44/68,644.26 = 31,876.20/x
  3. Step 3: Cross multiply
    49,780.44x = 68,644.26 × 31,876.20
  4. Step 4: Simplify right side
    49,780.44x = 2,188,118,160.61
  5. Step 5: Solve for x
    x = 2,188,118,160.61/49,780.44
  6. Step 6: Final answer
    x = 43,955.38

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1.5x scale

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.