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Finding the Fourth Proportional to 145.04, 217.57 and 48.85

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Solution

The fourth proportional to 145.04, 217.57 and 48.85 is: 73.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    145.04 : 217.57 = 48.85 : x
  2. Step 2: Convert to fraction form
    145.04/217.57 = 48.85/x
  3. Step 3: Cross multiply
    145.04x = 217.57 × 48.85
  4. Step 4: Simplify right side
    145.04x = 10,627.63
  5. Step 5: Solve for x
    x = 10,627.63/145.04
  6. Step 6: Final answer
    x = 73.28

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