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Finding the Fourth Proportional to 73.11, 109.57 and 37

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Solution

The fourth proportional to 73.11, 109.57 and 37 is: 55.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    73.11 : 109.57 = 37 : x
  2. Step 2: Convert to fraction form
    73.11/109.57 = 37/x
  3. Step 3: Cross multiply
    73.11x = 109.57 × 37
  4. Step 4: Simplify right side
    73.11x = 4,054.09
  5. Step 5: Solve for x
    x = 4,054.09/73.11
  6. Step 6: Final answer
    x = 55.45

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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.