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Finding the Fourth Proportional to 60,930.80, 91,396.20 and 53,154.80

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Solution

The fourth proportional to 60,930.80, 91,396.20 and 53,154.80 is: 79,732.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,930.80 : 91,396.20 = 53,154.80 : x
  2. Step 2: Convert to fraction form
    60,930.80/91,396.20 = 53,154.80/x
  3. Step 3: Cross multiply
    60,930.80x = 91,396.20 × 53,154.80
  4. Step 4: Simplify right side
    60,930.80x = 4,858,146,731.76
  5. Step 5: Solve for x
    x = 4,858,146,731.76/60,930.80
  6. Step 6: Final answer
    x = 79,732.20

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