Home / 81,333.30-121,996.36-22,168.97

Finding the Fourth Proportional to 81,333.30, 121,996.36 and 22,168.97

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Solution

The fourth proportional to 81,333.30, 121,996.36 and 22,168.97 is: 33,252.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,333.30 : 121,996.36 = 22,168.97 : x
  2. Step 2: Convert to fraction form
    81,333.30/121,996.36 = 22,168.97/x
  3. Step 3: Cross multiply
    81,333.30x = 121,996.36 × 22,168.97
  4. Step 4: Simplify right side
    81,333.30x = 2,704,532,979.54
  5. Step 5: Solve for x
    x = 2,704,532,979.54/81,333.30
  6. Step 6: Final answer
    x = 33,252.47

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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.