Home / 40,902.78-61,355.54-11,318.14

Finding the Fourth Proportional to 40,902.78, 61,355.54 and 11,318.14

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Solution

The fourth proportional to 40,902.78, 61,355.54 and 11,318.14 is: 16,977.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,902.78 : 61,355.54 = 11,318.14 : x
  2. Step 2: Convert to fraction form
    40,902.78/61,355.54 = 11,318.14/x
  3. Step 3: Cross multiply
    40,902.78x = 61,355.54 × 11,318.14
  4. Step 4: Simplify right side
    40,902.78x = 694,430,591.50
  5. Step 5: Solve for x
    x = 694,430,591.50/40,902.78
  6. Step 6: Final answer
    x = 16,977.59

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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.