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Finding the Fourth Proportional to 109,030.80, 163,546.20 and 56,542.80

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Solution

The fourth proportional to 109,030.80, 163,546.20 and 56,542.80 is: 84,814.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,030.80 : 163,546.20 = 56,542.80 : x
  2. Step 2: Convert to fraction form
    109,030.80/163,546.20 = 56,542.80/x
  3. Step 3: Cross multiply
    109,030.80x = 163,546.20 × 56,542.80
  4. Step 4: Simplify right side
    109,030.80x = 9,247,360,077.36
  5. Step 5: Solve for x
    x = 9,247,360,077.36/109,030.80
  6. Step 6: Final answer
    x = 84,814.20

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