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Finding the Fourth Proportional to 102,431.94, 153,670.68 and 31,364.52

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Solution

The fourth proportional to 102,431.94, 153,670.68 and 31,364.52 is: 47,053.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,431.94 : 153,670.68 = 31,364.52 : x
  2. Step 2: Convert to fraction form
    102,431.94/153,670.68 = 31,364.52/x
  3. Step 3: Cross multiply
    102,431.94x = 153,670.68 × 31,364.52
  4. Step 4: Simplify right side
    102,431.94x = 4,819,807,116.27
  5. Step 5: Solve for x
    x = 4,819,807,116.27/102,431.94
  6. Step 6: Final answer
    x = 47,053.75

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