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Finding the Fourth Proportional to 113,607.80, 170,411.70 and 54,558.80

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Solution

The fourth proportional to 113,607.80, 170,411.70 and 54,558.80 is: 81,838.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,607.80 : 170,411.70 = 54,558.80 : x
  2. Step 2: Convert to fraction form
    113,607.80/170,411.70 = 54,558.80/x
  3. Step 3: Cross multiply
    113,607.80x = 170,411.70 × 54,558.80
  4. Step 4: Simplify right side
    113,607.80x = 9,297,457,857.96
  5. Step 5: Solve for x
    x = 9,297,457,857.96/113,607.80
  6. Step 6: Final answer
    x = 81,838.20

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