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Finding the Fourth Proportional to 64,315.60, 96,538.20 and 31,062.40

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Solution

The fourth proportional to 64,315.60, 96,538.20 and 31,062.40 is: 46,624.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,315.60 : 96,538.20 = 31,062.40 : x
  2. Step 2: Convert to fraction form
    64,315.60/96,538.20 = 31,062.40/x
  3. Step 3: Cross multiply
    64,315.60x = 96,538.20 × 31,062.40
  4. Step 4: Simplify right side
    64,315.60x = 2,998,708,183.68
  5. Step 5: Solve for x
    x = 2,998,708,183.68/64,315.60
  6. Step 6: Final answer
    x = 46,624.90

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