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Finding the Fourth Proportional to 101.04, 151.55 and 28.91

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Solution

The fourth proportional to 101.04, 151.55 and 28.91 is: 43.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    101.04 : 151.55 = 28.91 : x
  2. Step 2: Convert to fraction form
    101.04/151.55 = 28.91/x
  3. Step 3: Cross multiply
    101.04x = 151.55 × 28.91
  4. Step 4: Simplify right side
    101.04x = 4,381.31
  5. Step 5: Solve for x
    x = 4,381.31/101.04
  6. Step 6: Final answer
    x = 43.36

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