Home / 81,936.04-122,977.32-41,982.28

Finding the Fourth Proportional to 81,936.04, 122,977.32 and 41,982.28

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Solution

The fourth proportional to 81,936.04, 122,977.32 and 41,982.28 is: 63,010.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,936.04 : 122,977.32 = 41,982.28 : x
  2. Step 2: Convert to fraction form
    81,936.04/122,977.32 = 41,982.28/x
  3. Step 3: Cross multiply
    81,936.04x = 122,977.32 × 41,982.28
  4. Step 4: Simplify right side
    81,936.04x = 5,162,868,281.89
  5. Step 5: Solve for x
    x = 5,162,868,281.89/81,936.04
  6. Step 6: Final answer
    x = 63,010.96

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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.