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Finding the Fourth Proportional to 49.83, 69.18 and 48.35

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Solution

The fourth proportional to 49.83, 69.18 and 48.35 is: 67.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.83 : 69.18 = 48.35 : x
  2. Step 2: Convert to fraction form
    49.83/69.18 = 48.35/x
  3. Step 3: Cross multiply
    49.83x = 69.18 × 48.35
  4. Step 4: Simplify right side
    49.83x = 3,344.51
  5. Step 5: Solve for x
    x = 3,344.51/49.83
  6. Step 6: Final answer
    x = 67.12

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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.