Home / 81,382.23-122,072.09-22,217.73

Finding the Fourth Proportional to 81,382.23, 122,072.09 and 22,217.73

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Solution

The fourth proportional to 81,382.23, 122,072.09 and 22,217.73 is: 33,326.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,382.23 : 122,072.09 = 22,217.73 : x
  2. Step 2: Convert to fraction form
    81,382.23/122,072.09 = 22,217.73/x
  3. Step 3: Cross multiply
    81,382.23x = 122,072.09 × 22,217.73
  4. Step 4: Simplify right side
    81,382.23x = 2,712,164,736.16
  5. Step 5: Solve for x
    x = 2,712,164,736.16/81,382.23
  6. Step 6: Final answer
    x = 33,326.25

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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.