Home / 47,705.58-71,556.09-18,121.11

Finding the Fourth Proportional to 47,705.58, 71,556.09 and 18,121.11

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Solution

The fourth proportional to 47,705.58, 71,556.09 and 18,121.11 is: 27,180.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,705.58 : 71,556.09 = 18,121.11 : x
  2. Step 2: Convert to fraction form
    47,705.58/71,556.09 = 18,121.11/x
  3. Step 3: Cross multiply
    47,705.58x = 71,556.09 × 18,121.11
  4. Step 4: Simplify right side
    47,705.58x = 1,296,675,778.06
  5. Step 5: Solve for x
    x = 1,296,675,778.06/47,705.58
  6. Step 6: Final answer
    x = 27,180.80

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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.