Home / 81,931.36-122,896.97-22,767

Finding the Fourth Proportional to 81,931.36, 122,896.97 and 22,767

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Solution

The fourth proportional to 81,931.36, 122,896.97 and 22,767 is: 34,150.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,931.36 : 122,896.97 = 22,767 : x
  2. Step 2: Convert to fraction form
    81,931.36/122,896.97 = 22,767/x
  3. Step 3: Cross multiply
    81,931.36x = 122,896.97 × 22,767
  4. Step 4: Simplify right side
    81,931.36x = 2,797,995,315.99
  5. Step 5: Solve for x
    x = 2,797,995,315.99/81,931.36
  6. Step 6: Final answer
    x = 34,150.48

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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.