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Finding the Fourth Proportional to 73.03, 100.90 and 51.30

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Solution

The fourth proportional to 73.03, 100.90 and 51.30 is: 70.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    73.03 : 100.90 = 51.30 : x
  2. Step 2: Convert to fraction form
    73.03/100.90 = 51.30/x
  3. Step 3: Cross multiply
    73.03x = 100.90 × 51.30
  4. Step 4: Simplify right side
    73.03x = 5,176.17
  5. Step 5: Solve for x
    x = 5,176.17/73.03
  6. Step 6: Final answer
    x = 70.88

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