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Finding the Fourth Proportional to 65.68, 98 and 60.28

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Solution

The fourth proportional to 65.68, 98 and 60.28 is: 89.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    65.68 : 98 = 60.28 : x
  2. Step 2: Convert to fraction form
    65.68/98 = 60.28/x
  3. Step 3: Cross multiply
    65.68x = 98 × 60.28
  4. Step 4: Simplify right side
    65.68x = 5,907.44
  5. Step 5: Solve for x
    x = 5,907.44/65.68
  6. Step 6: Final answer
    x = 89.94

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Find fourth proportional to 32.84, 49 and 30.14
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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.