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Finding the Fourth Proportional to 79.04, 118.58 and 30.96

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Solution

The fourth proportional to 79.04, 118.58 and 30.96 is: 46.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79.04 : 118.58 = 30.96 : x
  2. Step 2: Convert to fraction form
    79.04/118.58 = 30.96/x
  3. Step 3: Cross multiply
    79.04x = 118.58 × 30.96
  4. Step 4: Simplify right side
    79.04x = 3,671.24
  5. Step 5: Solve for x
    x = 3,671.24/79.04
  6. Step 6: Final answer
    x = 46.45

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