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Finding the Fourth Proportional to 73.26, 100.65 and 60.30

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Solution

The fourth proportional to 73.26, 100.65 and 60.30 is: 82.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    73.26 : 100.65 = 60.30 : x
  2. Step 2: Convert to fraction form
    73.26/100.65 = 60.30/x
  3. Step 3: Cross multiply
    73.26x = 100.65 × 60.30
  4. Step 4: Simplify right side
    73.26x = 6,069.20
  5. Step 5: Solve for x
    x = 6,069.20/73.26
  6. Step 6: Final answer
    x = 82.84

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.