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Finding the Fourth Proportional to 82,450.60, 123,530.10 and 69,911.80

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Solution

The fourth proportional to 82,450.60, 123,530.10 and 69,911.80 is: 104,744.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,450.60 : 123,530.10 = 69,911.80 : x
  2. Step 2: Convert to fraction form
    82,450.60/123,530.10 = 69,911.80/x
  3. Step 3: Cross multiply
    82,450.60x = 123,530.10 × 69,911.80
  4. Step 4: Simplify right side
    82,450.60x = 8,636,211,645.18
  5. Step 5: Solve for x
    x = 8,636,211,645.18/82,450.60
  6. Step 6: Final answer
    x = 104,744.07

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