Home / 79,791.03-119,677.23-20,622.06

Finding the Fourth Proportional to 79,791.03, 119,677.23 and 20,622.06

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Solution

The fourth proportional to 79,791.03, 119,677.23 and 20,622.06 is: 30,930.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,791.03 : 119,677.23 = 20,622.06 : x
  2. Step 2: Convert to fraction form
    79,791.03/119,677.23 = 20,622.06/x
  3. Step 3: Cross multiply
    79,791.03x = 119,677.23 × 20,622.06
  4. Step 4: Simplify right side
    79,791.03x = 2,467,991,017.69
  5. Step 5: Solve for x
    x = 2,467,991,017.69/79,791.03
  6. Step 6: Final answer
    x = 30,930.68

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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.