Home / 40,845.14-61,221.78-20,798.38

Finding the Fourth Proportional to 40,845.14, 61,221.78 and 20,798.38

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Solution

The fourth proportional to 40,845.14, 61,221.78 and 20,798.38 is: 31,174.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,845.14 : 61,221.78 = 20,798.38 : x
  2. Step 2: Convert to fraction form
    40,845.14/61,221.78 = 20,798.38/x
  3. Step 3: Cross multiply
    40,845.14x = 61,221.78 × 20,798.38
  4. Step 4: Simplify right side
    40,845.14x = 1,273,313,844.72
  5. Step 5: Solve for x
    x = 1,273,313,844.72/40,845.14
  6. Step 6: Final answer
    x = 31,174.18

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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.