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Finding the Fourth Proportional to 75.62, 104.46 and 69.50

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Solution

The fourth proportional to 75.62, 104.46 and 69.50 is: 96.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    75.62 : 104.46 = 69.50 : x
  2. Step 2: Convert to fraction form
    75.62/104.46 = 69.50/x
  3. Step 3: Cross multiply
    75.62x = 104.46 × 69.50
  4. Step 4: Simplify right side
    75.62x = 7,259.97
  5. Step 5: Solve for x
    x = 7,259.97/75.62
  6. Step 6: Final answer
    x = 96.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.