Home / 74,091.33-111,133.05-20,786.99

Finding the Fourth Proportional to 74,091.33, 111,133.05 and 20,786.99

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Solution

The fourth proportional to 74,091.33, 111,133.05 and 20,786.99 is: 31,179.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,091.33 : 111,133.05 = 20,786.99 : x
  2. Step 2: Convert to fraction form
    74,091.33/111,133.05 = 20,786.99/x
  3. Step 3: Cross multiply
    74,091.33x = 111,133.05 × 20,786.99
  4. Step 4: Simplify right side
    74,091.33x = 2,310,121,043.35
  5. Step 5: Solve for x
    x = 2,310,121,043.35/74,091.33
  6. Step 6: Final answer
    x = 31,179.37

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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.