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Finding the Fourth Proportional to 76,147.36, 105,131.06 and 48,934.48

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Solution

The fourth proportional to 76,147.36, 105,131.06 and 48,934.48 is: 67,560.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,147.36 : 105,131.06 = 48,934.48 : x
  2. Step 2: Convert to fraction form
    76,147.36/105,131.06 = 48,934.48/x
  3. Step 3: Cross multiply
    76,147.36x = 105,131.06 × 48,934.48
  4. Step 4: Simplify right side
    76,147.36x = 5,144,533,752.95
  5. Step 5: Solve for x
    x = 5,144,533,752.95/76,147.36
  6. Step 6: Final answer
    x = 67,560.24

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