Home / 81,716.25-122,581.43-22,551.91

Finding the Fourth Proportional to 81,716.25, 122,581.43 and 22,551.91

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Solution

The fourth proportional to 81,716.25, 122,581.43 and 22,551.91 is: 33,829.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,716.25 : 122,581.43 = 22,551.91 : x
  2. Step 2: Convert to fraction form
    81,716.25/122,581.43 = 22,551.91/x
  3. Step 3: Cross multiply
    81,716.25x = 122,581.43 × 22,551.91
  4. Step 4: Simplify right side
    81,716.25x = 2,764,445,377.03
  5. Step 5: Solve for x
    x = 2,764,445,377.03/81,716.25
  6. Step 6: Final answer
    x = 33,829.81

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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.