Home / 81,896.03-122,770.94-31,964.49

Finding the Fourth Proportional to 81,896.03, 122,770.94 and 31,964.49

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Solution

The fourth proportional to 81,896.03, 122,770.94 and 31,964.49 is: 47,918.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,896.03 : 122,770.94 = 31,964.49 : x
  2. Step 2: Convert to fraction form
    81,896.03/122,770.94 = 31,964.49/x
  3. Step 3: Cross multiply
    81,896.03x = 122,770.94 × 31,964.49
  4. Step 4: Simplify right side
    81,896.03x = 3,924,310,503.90
  5. Step 5: Solve for x
    x = 3,924,310,503.90/81,896.03
  6. Step 6: Final answer
    x = 47,918.20

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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.