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Finding the Fourth Proportional to 81,755.44, 122,680.23 and 34,366.48

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Solution

The fourth proportional to 81,755.44, 122,680.23 and 34,366.48 is: 51,569.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,755.44 : 122,680.23 = 34,366.48 : x
  2. Step 2: Convert to fraction form
    81,755.44/122,680.23 = 34,366.48/x
  3. Step 3: Cross multiply
    81,755.44x = 122,680.23 × 34,366.48
  4. Step 4: Simplify right side
    81,755.44x = 4,216,087,670.69
  5. Step 5: Solve for x
    x = 4,216,087,670.69/81,755.44
  6. Step 6: Final answer
    x = 51,569.51

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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.