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Finding the Fourth Proportional to 81,744.57, 122,619.17 and 22,580.25

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Solution

The fourth proportional to 81,744.57, 122,619.17 and 22,580.25 is: 33,871.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,744.57 : 122,619.17 = 22,580.25 : x
  2. Step 2: Convert to fraction form
    81,744.57/122,619.17 = 22,580.25/x
  3. Step 3: Cross multiply
    81,744.57x = 122,619.17 × 22,580.25
  4. Step 4: Simplify right side
    81,744.57x = 2,768,771,513.39
  5. Step 5: Solve for x
    x = 2,768,771,513.39/81,744.57
  6. Step 6: Final answer
    x = 33,871.01

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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.