Home / 81,673.25-122,513.04-22,513.55

Finding the Fourth Proportional to 81,673.25, 122,513.04 and 22,513.55

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Solution

The fourth proportional to 81,673.25, 122,513.04 and 22,513.55 is: 33,771.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,673.25 : 122,513.04 = 22,513.55 : x
  2. Step 2: Convert to fraction form
    81,673.25/122,513.04 = 22,513.55/x
  3. Step 3: Cross multiply
    81,673.25x = 122,513.04 × 22,513.55
  4. Step 4: Simplify right side
    81,673.25x = 2,758,202,839.13
  5. Step 5: Solve for x
    x = 2,758,202,839.13/81,673.25
  6. Step 6: Final answer
    x = 33,771.19

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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.