Home / 81,065.22-121,593.24-21,896.43

Finding the Fourth Proportional to 81,065.22, 121,593.24 and 21,896.43

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Solution

The fourth proportional to 81,065.22, 121,593.24 and 21,896.43 is: 32,843.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,065.22 : 121,593.24 = 21,896.43 : x
  2. Step 2: Convert to fraction form
    81,065.22/121,593.24 = 21,896.43/x
  3. Step 3: Cross multiply
    81,065.22x = 121,593.24 × 21,896.43
  4. Step 4: Simplify right side
    81,065.22x = 2,662,457,868.13
  5. Step 5: Solve for x
    x = 2,662,457,868.13/81,065.22
  6. Step 6: Final answer
    x = 32,843.41

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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.