Home / 45,781.20-68,736.60-35,931.60

Finding the Fourth Proportional to 45,781.20, 68,736.60 and 35,931.60

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Solution

The fourth proportional to 45,781.20, 68,736.60 and 35,931.60 is: 53,948.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,781.20 : 68,736.60 = 35,931.60 : x
  2. Step 2: Convert to fraction form
    45,781.20/68,736.60 = 35,931.60/x
  3. Step 3: Cross multiply
    45,781.20x = 68,736.60 × 35,931.60
  4. Step 4: Simplify right side
    45,781.20x = 2,469,816,016.56
  5. Step 5: Solve for x
    x = 2,469,816,016.56/45,781.20
  6. Step 6: Final answer
    x = 53,948.26

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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.