Home / 74,067.36-111,105.11-21,480.94

Finding the Fourth Proportional to 74,067.36, 111,105.11 and 21,480.94

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Solution

The fourth proportional to 74,067.36, 111,105.11 and 21,480.94 is: 32,222.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,067.36 : 111,105.11 = 21,480.94 : x
  2. Step 2: Convert to fraction form
    74,067.36/111,105.11 = 21,480.94/x
  3. Step 3: Cross multiply
    74,067.36x = 111,105.11 × 21,480.94
  4. Step 4: Simplify right side
    74,067.36x = 2,386,642,201.60
  5. Step 5: Solve for x
    x = 2,386,642,201.60/74,067.36
  6. Step 6: Final answer
    x = 32,222.59

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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.