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Finding the Fourth Proportional to 50.79, 75.84 and 44.72

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Solution

The fourth proportional to 50.79, 75.84 and 44.72 is: 66.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    50.79 : 75.84 = 44.72 : x
  2. Step 2: Convert to fraction form
    50.79/75.84 = 44.72/x
  3. Step 3: Cross multiply
    50.79x = 75.84 × 44.72
  4. Step 4: Simplify right side
    50.79x = 3,391.30
  5. Step 5: Solve for x
    x = 3,391.30/50.79
  6. Step 6: Final answer
    x = 66.77

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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.