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Finding the Fourth Proportional to 64.91, 97.14 and 48.67

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Solution

The fourth proportional to 64.91, 97.14 and 48.67 is: 72.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    64.91 : 97.14 = 48.67 : x
  2. Step 2: Convert to fraction form
    64.91/97.14 = 48.67/x
  3. Step 3: Cross multiply
    64.91x = 97.14 × 48.67
  4. Step 4: Simplify right side
    64.91x = 4,727.80
  5. Step 5: Solve for x
    x = 4,727.80/64.91
  6. Step 6: Final answer
    x = 72.84

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