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Finding the Fourth Proportional to 81,376.13, 122,130.41 and 41,944.52

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Solution

The fourth proportional to 81,376.13, 122,130.41 and 41,944.52 is: 62,950.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,376.13 : 122,130.41 = 41,944.52 : x
  2. Step 2: Convert to fraction form
    81,376.13/122,130.41 = 41,944.52/x
  3. Step 3: Cross multiply
    81,376.13x = 122,130.41 × 41,944.52
  4. Step 4: Simplify right side
    81,376.13x = 5,122,700,604.48
  5. Step 5: Solve for x
    x = 5,122,700,604.48/81,376.13
  6. Step 6: Final answer
    x = 62,950.90

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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.