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Finding the Fourth Proportional to 73.88, 110.88 and 56

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Solution

The fourth proportional to 73.88, 110.88 and 56 is: 84.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    73.88 : 110.88 = 56 : x
  2. Step 2: Convert to fraction form
    73.88/110.88 = 56/x
  3. Step 3: Cross multiply
    73.88x = 110.88 × 56
  4. Step 4: Simplify right side
    73.88x = 6,209.28
  5. Step 5: Solve for x
    x = 6,209.28/73.88
  6. Step 6: Final answer
    x = 84.05

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