Home / 81,414.45-122,139.09-25,253.34

Finding the Fourth Proportional to 81,414.45, 122,139.09 and 25,253.34

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Solution

The fourth proportional to 81,414.45, 122,139.09 and 25,253.34 is: 37,885.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,414.45 : 122,139.09 = 25,253.34 : x
  2. Step 2: Convert to fraction form
    81,414.45/122,139.09 = 25,253.34/x
  3. Step 3: Cross multiply
    81,414.45x = 122,139.09 × 25,253.34
  4. Step 4: Simplify right side
    81,414.45x = 3,084,419,967.06
  5. Step 5: Solve for x
    x = 3,084,419,967.06/81,414.45
  6. Step 6: Final answer
    x = 37,885.41

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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.