Home / 81,825.43-122,738.16-22,661.11

Finding the Fourth Proportional to 81,825.43, 122,738.16 and 22,661.11

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Solution

The fourth proportional to 81,825.43, 122,738.16 and 22,661.11 is: 33,991.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,825.43 : 122,738.16 = 22,661.11 : x
  2. Step 2: Convert to fraction form
    81,825.43/122,738.16 = 22,661.11/x
  3. Step 3: Cross multiply
    81,825.43x = 122,738.16 × 22,661.11
  4. Step 4: Simplify right side
    81,825.43x = 2,781,382,944.96
  5. Step 5: Solve for x
    x = 2,781,382,944.96/81,825.43
  6. Step 6: Final answer
    x = 33,991.67

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Similar ratio
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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.