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Finding the Fourth Proportional to 48,676.40, 73,009.20 and 13,619.60

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Solution

The fourth proportional to 48,676.40, 73,009.20 and 13,619.60 is: 20,427.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,676.40 : 73,009.20 = 13,619.60 : x
  2. Step 2: Convert to fraction form
    48,676.40/73,009.20 = 13,619.60/x
  3. Step 3: Cross multiply
    48,676.40x = 73,009.20 × 13,619.60
  4. Step 4: Simplify right side
    48,676.40x = 994,356,100.32
  5. Step 5: Solve for x
    x = 994,356,100.32/48,676.40
  6. Step 6: Final answer
    x = 20,427.89

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