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Finding the Fourth Proportional to 63,209.40, 86,960.70 and 61,459.80

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Solution

The fourth proportional to 63,209.40, 86,960.70 and 61,459.80 is: 84,553.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,209.40 : 86,960.70 = 61,459.80 : x
  2. Step 2: Convert to fraction form
    63,209.40/86,960.70 = 61,459.80/x
  3. Step 3: Cross multiply
    63,209.40x = 86,960.70 × 61,459.80
  4. Step 4: Simplify right side
    63,209.40x = 5,344,587,229.86
  5. Step 5: Solve for x
    x = 5,344,587,229.86/63,209.40
  6. Step 6: Final answer
    x = 84,553.68

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