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Finding the Fourth Proportional to 50.23, 69.38 and 45.06

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Solution

The fourth proportional to 50.23, 69.38 and 45.06 is: 62.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    50.23 : 69.38 = 45.06 : x
  2. Step 2: Convert to fraction form
    50.23/69.38 = 45.06/x
  3. Step 3: Cross multiply
    50.23x = 69.38 × 45.06
  4. Step 4: Simplify right side
    50.23x = 3,125.95
  5. Step 5: Solve for x
    x = 3,125.95/50.23
  6. Step 6: Final answer
    x = 62.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.