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Finding the Fourth Proportional to 85,020.54, 127,447.58 and 31,673.38

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Solution

The fourth proportional to 85,020.54, 127,447.58 and 31,673.38 is: 47,479.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,020.54 : 127,447.58 = 31,673.38 : x
  2. Step 2: Convert to fraction form
    85,020.54/127,447.58 = 31,673.38/x
  3. Step 3: Cross multiply
    85,020.54x = 127,447.58 × 31,673.38
  4. Step 4: Simplify right side
    85,020.54x = 4,036,695,452.79
  5. Step 5: Solve for x
    x = 4,036,695,452.79/85,020.54
  6. Step 6: Final answer
    x = 47,479.06

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