Home / 71,067.05-106,561.40-28,936.34

Finding the Fourth Proportional to 71,067.05, 106,561.40 and 28,936.34

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Solution

The fourth proportional to 71,067.05, 106,561.40 and 28,936.34 is: 43,388.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,067.05 : 106,561.40 = 28,936.34 : x
  2. Step 2: Convert to fraction form
    71,067.05/106,561.40 = 28,936.34/x
  3. Step 3: Cross multiply
    71,067.05x = 106,561.40 × 28,936.34
  4. Step 4: Simplify right side
    71,067.05x = 3,083,496,223.79
  5. Step 5: Solve for x
    x = 3,083,496,223.79/71,067.05
  6. Step 6: Final answer
    x = 43,388.55

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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.