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Finding the Fourth Proportional to 35.96, 49.86 and 34.68

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Solution

The fourth proportional to 35.96, 49.86 and 34.68 is: 48.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.96 : 49.86 = 34.68 : x
  2. Step 2: Convert to fraction form
    35.96/49.86 = 34.68/x
  3. Step 3: Cross multiply
    35.96x = 49.86 × 34.68
  4. Step 4: Simplify right side
    35.96x = 1,728.81
  5. Step 5: Solve for x
    x = 1,728.81/35.96
  6. Step 6: Final answer
    x = 48.08

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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.