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Finding the Fourth Proportional to 73.00, 109.42 and 50.19

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Solution

The fourth proportional to 73.00, 109.42 and 50.19 is: 75.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    73.00 : 109.42 = 50.19 : x
  2. Step 2: Convert to fraction form
    73.00/109.42 = 50.19/x
  3. Step 3: Cross multiply
    73.00x = 109.42 × 50.19
  4. Step 4: Simplify right side
    73.00x = 5,491.25
  5. Step 5: Solve for x
    x = 5,491.25/73.00
  6. Step 6: Final answer
    x = 75.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.