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Finding the Fourth Proportional to 50.77, 76.41 and 38.00

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Solution

The fourth proportional to 50.77, 76.41 and 38.00 is: 57.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    50.77 : 76.41 = 38.00 : x
  2. Step 2: Convert to fraction form
    50.77/76.41 = 38.00/x
  3. Step 3: Cross multiply
    50.77x = 76.41 × 38.00
  4. Step 4: Simplify right side
    50.77x = 2,903.66
  5. Step 5: Solve for x
    x = 2,903.66/50.77
  6. Step 6: Final answer
    x = 57.19

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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.