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Finding the Fourth Proportional to 50.52, 76.08 and 38.58

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Solution

The fourth proportional to 50.52, 76.08 and 38.58 is: 58.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    50.52 : 76.08 = 38.58 : x
  2. Step 2: Convert to fraction form
    50.52/76.08 = 38.58/x
  3. Step 3: Cross multiply
    50.52x = 76.08 × 38.58
  4. Step 4: Simplify right side
    50.52x = 2,935.17
  5. Step 5: Solve for x
    x = 2,935.17/50.52
  6. Step 6: Final answer
    x = 58.10

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.