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Finding the Fourth Proportional to 81,568.62, 122,401.37 and 44,127.87

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Solution

The fourth proportional to 81,568.62, 122,401.37 and 44,127.87 is: 66,218.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,568.62 : 122,401.37 = 44,127.87 : x
  2. Step 2: Convert to fraction form
    81,568.62/122,401.37 = 44,127.87/x
  3. Step 3: Cross multiply
    81,568.62x = 122,401.37 × 44,127.87
  4. Step 4: Simplify right side
    81,568.62x = 5,401,311,522.54
  5. Step 5: Solve for x
    x = 5,401,311,522.54/81,568.62
  6. Step 6: Final answer
    x = 66,218.01

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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.