Home / 81,418.08-122,144.53-25,256.97

Finding the Fourth Proportional to 81,418.08, 122,144.53 and 25,256.97

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Solution

The fourth proportional to 81,418.08, 122,144.53 and 25,256.97 is: 37,890.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,418.08 : 122,144.53 = 25,256.97 : x
  2. Step 2: Convert to fraction form
    81,418.08/122,144.53 = 25,256.97/x
  3. Step 3: Cross multiply
    81,418.08x = 122,144.53 × 25,256.97
  4. Step 4: Simplify right side
    81,418.08x = 3,085,000,056.01
  5. Step 5: Solve for x
    x = 3,085,000,056.01/81,418.08
  6. Step 6: Final answer
    x = 37,890.85

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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.