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Finding the Fourth Proportional to 96,942.40, 145,336.80 and 53,166.40

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Solution

The fourth proportional to 96,942.40, 145,336.80 and 53,166.40 is: 79,707.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,942.40 : 145,336.80 = 53,166.40 : x
  2. Step 2: Convert to fraction form
    96,942.40/145,336.80 = 53,166.40/x
  3. Step 3: Cross multiply
    96,942.40x = 145,336.80 × 53,166.40
  4. Step 4: Simplify right side
    96,942.40x = 7,727,034,443.52
  5. Step 5: Solve for x
    x = 7,727,034,443.52/96,942.40
  6. Step 6: Final answer
    x = 79,707.48

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