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Finding the Fourth Proportional to 79,768.62, 119,653.32 and 20,600.22

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Solution

The fourth proportional to 79,768.62, 119,653.32 and 20,600.22 is: 30,900.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,768.62 : 119,653.32 = 20,600.22 : x
  2. Step 2: Convert to fraction form
    79,768.62/119,653.32 = 20,600.22/x
  3. Step 3: Cross multiply
    79,768.62x = 119,653.32 × 20,600.22
  4. Step 4: Simplify right side
    79,768.62x = 2,464,884,715.73
  5. Step 5: Solve for x
    x = 2,464,884,715.73/79,768.62
  6. Step 6: Final answer
    x = 30,900.43

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1.5x scale

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.