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Finding the Fourth Proportional to 35.70, 53.14 and 33.56

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Solution

The fourth proportional to 35.70, 53.14 and 33.56 is: 49.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.70 : 53.14 = 33.56 : x
  2. Step 2: Convert to fraction form
    35.70/53.14 = 33.56/x
  3. Step 3: Cross multiply
    35.70x = 53.14 × 33.56
  4. Step 4: Simplify right side
    35.70x = 1,783.38
  5. Step 5: Solve for x
    x = 1,783.38/35.70
  6. Step 6: Final answer
    x = 49.95

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.