Home / 79,795.48-119,697.33-20,631.66

Finding the Fourth Proportional to 79,795.48, 119,697.33 and 20,631.66

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Solution

The fourth proportional to 79,795.48, 119,697.33 and 20,631.66 is: 30,948.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,795.48 : 119,697.33 = 20,631.66 : x
  2. Step 2: Convert to fraction form
    79,795.48/119,697.33 = 20,631.66/x
  3. Step 3: Cross multiply
    79,795.48x = 119,697.33 × 20,631.66
  4. Step 4: Simplify right side
    79,795.48x = 2,469,554,801.22
  5. Step 5: Solve for x
    x = 2,469,554,801.22/79,795.48
  6. Step 6: Final answer
    x = 30,948.56

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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.