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Finding the Fourth Proportional to 55,256.40, 82,884.60 and 47,739.60

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Solution

The fourth proportional to 55,256.40, 82,884.60 and 47,739.60 is: 71,609.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,256.40 : 82,884.60 = 47,739.60 : x
  2. Step 2: Convert to fraction form
    55,256.40/82,884.60 = 47,739.60/x
  3. Step 3: Cross multiply
    55,256.40x = 82,884.60 × 47,739.60
  4. Step 4: Simplify right side
    55,256.40x = 3,956,877,650.16
  5. Step 5: Solve for x
    x = 3,956,877,650.16/55,256.40
  6. Step 6: Final answer
    x = 71,609.40

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