Home / 81,908.11-122,862.07-25,753.13

Finding the Fourth Proportional to 81,908.11, 122,862.07 and 25,753.13

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Solution

The fourth proportional to 81,908.11, 122,862.07 and 25,753.13 is: 38,629.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,908.11 : 122,862.07 = 25,753.13 : x
  2. Step 2: Convert to fraction form
    81,908.11/122,862.07 = 25,753.13/x
  3. Step 3: Cross multiply
    81,908.11x = 122,862.07 × 25,753.13
  4. Step 4: Simplify right side
    81,908.11x = 3,164,082,860.78
  5. Step 5: Solve for x
    x = 3,164,082,860.78/81,908.11
  6. Step 6: Final answer
    x = 38,629.67

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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.