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Finding the Fourth Proportional to 35.54, 49 and 34.32

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Solution

The fourth proportional to 35.54, 49 and 34.32 is: 47.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.54 : 49 = 34.32 : x
  2. Step 2: Convert to fraction form
    35.54/49 = 34.32/x
  3. Step 3: Cross multiply
    35.54x = 49 × 34.32
  4. Step 4: Simplify right side
    35.54x = 1,681.68
  5. Step 5: Solve for x
    x = 1,681.68/35.54
  6. Step 6: Final answer
    x = 47.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.