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Finding the Fourth Proportional to 115,913.60, 173,740.80 and 49,342.40

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Solution

The fourth proportional to 115,913.60, 173,740.80 and 49,342.40 is: 73,958.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,913.60 : 173,740.80 = 49,342.40 : x
  2. Step 2: Convert to fraction form
    115,913.60/173,740.80 = 49,342.40/x
  3. Step 3: Cross multiply
    115,913.60x = 173,740.80 × 49,342.40
  4. Step 4: Simplify right side
    115,913.60x = 8,572,788,049.92
  5. Step 5: Solve for x
    x = 8,572,788,049.92/115,913.60
  6. Step 6: Final answer
    x = 73,958.43

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