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Finding the Fourth Proportional to 49.09, 68.05 and 48.33

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Solution

The fourth proportional to 49.09, 68.05 and 48.33 is: 67.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.09 : 68.05 = 48.33 : x
  2. Step 2: Convert to fraction form
    49.09/68.05 = 48.33/x
  3. Step 3: Cross multiply
    49.09x = 68.05 × 48.33
  4. Step 4: Simplify right side
    49.09x = 3,288.86
  5. Step 5: Solve for x
    x = 3,288.86/49.09
  6. Step 6: Final answer
    x = 67.00

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.