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Finding the Fourth Proportional to 35.84, 53.48 and 33.72

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Solution

The fourth proportional to 35.84, 53.48 and 33.72 is: 50.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.84 : 53.48 = 33.72 : x
  2. Step 2: Convert to fraction form
    35.84/53.48 = 33.72/x
  3. Step 3: Cross multiply
    35.84x = 53.48 × 33.72
  4. Step 4: Simplify right side
    35.84x = 1,803.35
  5. Step 5: Solve for x
    x = 1,803.35/35.84
  6. Step 6: Final answer
    x = 50.32

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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.