Home / 81,940.04-122,983.32-41,986.28

Finding the Fourth Proportional to 81,940.04, 122,983.32 and 41,986.28

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Solution

The fourth proportional to 81,940.04, 122,983.32 and 41,986.28 is: 63,016.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,940.04 : 122,983.32 = 41,986.28 : x
  2. Step 2: Convert to fraction form
    81,940.04/122,983.32 = 41,986.28/x
  3. Step 3: Cross multiply
    81,940.04x = 122,983.32 × 41,986.28
  4. Step 4: Simplify right side
    81,940.04x = 5,163,612,108.85
  5. Step 5: Solve for x
    x = 5,163,612,108.85/81,940.04
  6. Step 6: Final answer
    x = 63,016.96

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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.