Home / 81,321.19-122,093.72-41,367.21

Finding the Fourth Proportional to 81,321.19, 122,093.72 and 41,367.21

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Solution

The fourth proportional to 81,321.19, 122,093.72 and 41,367.21 is: 62,107.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,321.19 : 122,093.72 = 41,367.21 : x
  2. Step 2: Convert to fraction form
    81,321.19/122,093.72 = 41,367.21/x
  3. Step 3: Cross multiply
    81,321.19x = 122,093.72 × 41,367.21
  4. Step 4: Simplify right side
    81,321.19x = 5,050,676,554.92
  5. Step 5: Solve for x
    x = 5,050,676,554.92/81,321.19
  6. Step 6: Final answer
    x = 62,107.76

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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.