Home / 71,738.13-107,611.08-21,814.39

Finding the Fourth Proportional to 71,738.13, 107,611.08 and 21,814.39

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Solution

The fourth proportional to 71,738.13, 107,611.08 and 21,814.39 is: 32,722.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,738.13 : 107,611.08 = 21,814.39 : x
  2. Step 2: Convert to fraction form
    71,738.13/107,611.08 = 21,814.39/x
  3. Step 3: Cross multiply
    71,738.13x = 107,611.08 × 21,814.39
  4. Step 4: Simplify right side
    71,738.13x = 2,347,470,067.44
  5. Step 5: Solve for x
    x = 2,347,470,067.44/71,738.13
  6. Step 6: Final answer
    x = 32,722.77

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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.