Home / 45,951.44-68,936.38-20,984.78

Finding the Fourth Proportional to 45,951.44, 68,936.38 and 20,984.78

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Solution

The fourth proportional to 45,951.44, 68,936.38 and 20,984.78 is: 31,481.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,951.44 : 68,936.38 = 20,984.78 : x
  2. Step 2: Convert to fraction form
    45,951.44/68,936.38 = 20,984.78/x
  3. Step 3: Cross multiply
    45,951.44x = 68,936.38 × 20,984.78
  4. Step 4: Simplify right side
    45,951.44x = 1,446,614,371.15
  5. Step 5: Solve for x
    x = 1,446,614,371.15/45,951.44
  6. Step 6: Final answer
    x = 31,481.38

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1.5x scale

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.