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Finding the Fourth Proportional to 75.55, 113.47 and 52.84

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Solution

The fourth proportional to 75.55, 113.47 and 52.84 is: 79.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    75.55 : 113.47 = 52.84 : x
  2. Step 2: Convert to fraction form
    75.55/113.47 = 52.84/x
  3. Step 3: Cross multiply
    75.55x = 113.47 × 52.84
  4. Step 4: Simplify right side
    75.55x = 5,995.75
  5. Step 5: Solve for x
    x = 5,995.75/75.55
  6. Step 6: Final answer
    x = 79.36

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