Home / 81,914.30-122,871.49-22,749.97

Finding the Fourth Proportional to 81,914.30, 122,871.49 and 22,749.97

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Solution

The fourth proportional to 81,914.30, 122,871.49 and 22,749.97 is: 34,124.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,914.30 : 122,871.49 = 22,749.97 : x
  2. Step 2: Convert to fraction form
    81,914.30/122,871.49 = 22,749.97/x
  3. Step 3: Cross multiply
    81,914.30x = 122,871.49 × 22,749.97
  4. Step 4: Simplify right side
    81,914.30x = 2,795,322,711.36
  5. Step 5: Solve for x
    x = 2,795,322,711.36/81,914.30
  6. Step 6: Final answer
    x = 34,124.97

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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.