Home / 40,905.78-61,360.04-11,321.14

Finding the Fourth Proportional to 40,905.78, 61,360.04 and 11,321.14

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Solution

The fourth proportional to 40,905.78, 61,360.04 and 11,321.14 is: 16,982.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,905.78 : 61,360.04 = 11,321.14 : x
  2. Step 2: Convert to fraction form
    40,905.78/61,360.04 = 11,321.14/x
  3. Step 3: Cross multiply
    40,905.78x = 61,360.04 × 11,321.14
  4. Step 4: Simplify right side
    40,905.78x = 694,665,603.25
  5. Step 5: Solve for x
    x = 694,665,603.25/40,905.78
  6. Step 6: Final answer
    x = 16,982.09

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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.