Home / 81,245.18-121,880.82-25,072.04

Finding the Fourth Proportional to 81,245.18, 121,880.82 and 25,072.04

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Solution

The fourth proportional to 81,245.18, 121,880.82 and 25,072.04 is: 37,612.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,245.18 : 121,880.82 = 25,072.04 : x
  2. Step 2: Convert to fraction form
    81,245.18/121,880.82 = 25,072.04/x
  3. Step 3: Cross multiply
    81,245.18x = 121,880.82 × 25,072.04
  4. Step 4: Simplify right side
    81,245.18x = 3,055,800,794.27
  5. Step 5: Solve for x
    x = 3,055,800,794.27/81,245.18
  6. Step 6: Final answer
    x = 37,612.09

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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.