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Finding the Fourth Proportional to 35.51, 49.01 and 30.11

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Solution

The fourth proportional to 35.51, 49.01 and 30.11 is: 41.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.51 : 49.01 = 30.11 : x
  2. Step 2: Convert to fraction form
    35.51/49.01 = 30.11/x
  3. Step 3: Cross multiply
    35.51x = 49.01 × 30.11
  4. Step 4: Simplify right side
    35.51x = 1,475.30
  5. Step 5: Solve for x
    x = 1,475.30/35.51
  6. Step 6: Final answer
    x = 41.55

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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.