Home / 79,821.63-119,736.09-27,231.57

Finding the Fourth Proportional to 79,821.63, 119,736.09 and 27,231.57

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Solution

The fourth proportional to 79,821.63, 119,736.09 and 27,231.57 is: 40,848.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,821.63 : 119,736.09 = 27,231.57 : x
  2. Step 2: Convert to fraction form
    79,821.63/119,736.09 = 27,231.57/x
  3. Step 3: Cross multiply
    79,821.63x = 119,736.09 × 27,231.57
  4. Step 4: Simplify right side
    79,821.63x = 3,260,601,716.36
  5. Step 5: Solve for x
    x = 3,260,601,716.36/79,821.63
  6. Step 6: Final answer
    x = 40,848.60

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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.