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Finding the Fourth Proportional to 60,775.20, 91,123.20 and 54,554.40

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Solution

The fourth proportional to 60,775.20, 91,123.20 and 54,554.40 is: 81,796.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,775.20 : 91,123.20 = 54,554.40 : x
  2. Step 2: Convert to fraction form
    60,775.20/91,123.20 = 54,554.40/x
  3. Step 3: Cross multiply
    60,775.20x = 91,123.20 × 54,554.40
  4. Step 4: Simplify right side
    60,775.20x = 4,971,171,502.08
  5. Step 5: Solve for x
    x = 4,971,171,502.08/60,775.20
  6. Step 6: Final answer
    x = 81,796.05

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