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Finding the Fourth Proportional to 69.03, 104.01 and 57.84

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Solution

The fourth proportional to 69.03, 104.01 and 57.84 is: 87.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    69.03 : 104.01 = 57.84 : x
  2. Step 2: Convert to fraction form
    69.03/104.01 = 57.84/x
  3. Step 3: Cross multiply
    69.03x = 104.01 × 57.84
  4. Step 4: Simplify right side
    69.03x = 6,015.94
  5. Step 5: Solve for x
    x = 6,015.94/69.03
  6. Step 6: Final answer
    x = 87.15

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.