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Finding the Fourth Proportional to 50.04, 68.57 and 45.18

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Solution

The fourth proportional to 50.04, 68.57 and 45.18 is: 61.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    50.04 : 68.57 = 45.18 : x
  2. Step 2: Convert to fraction form
    50.04/68.57 = 45.18/x
  3. Step 3: Cross multiply
    50.04x = 68.57 × 45.18
  4. Step 4: Simplify right side
    50.04x = 3,098.19
  5. Step 5: Solve for x
    x = 3,098.19/50.04
  6. Step 6: Final answer
    x = 61.91

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.