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Finding the Fourth Proportional to 73.02, 100.62 and 64.92

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Solution

The fourth proportional to 73.02, 100.62 and 64.92 is: 89.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    73.02 : 100.62 = 64.92 : x
  2. Step 2: Convert to fraction form
    73.02/100.62 = 64.92/x
  3. Step 3: Cross multiply
    73.02x = 100.62 × 64.92
  4. Step 4: Simplify right side
    73.02x = 6,532.25
  5. Step 5: Solve for x
    x = 6,532.25/73.02
  6. Step 6: Final answer
    x = 89.46

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