Home / 81,776.44-122,591.94-31,844.92

Finding the Fourth Proportional to 81,776.44, 122,591.94 and 31,844.92

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Solution

The fourth proportional to 81,776.44, 122,591.94 and 31,844.92 is: 47,739.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,776.44 : 122,591.94 = 31,844.92 : x
  2. Step 2: Convert to fraction form
    81,776.44/122,591.94 = 31,844.92/x
  3. Step 3: Cross multiply
    81,776.44x = 122,591.94 × 31,844.92
  4. Step 4: Simplify right side
    81,776.44x = 3,903,930,521.94
  5. Step 5: Solve for x
    x = 3,903,930,521.94/81,776.44
  6. Step 6: Final answer
    x = 47,739.06

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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.