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Finding the Fourth Proportional to 86,821.60, 130,246.80 and 34,232.80

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Solution

The fourth proportional to 86,821.60, 130,246.80 and 34,232.80 is: 51,354.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,821.60 : 130,246.80 = 34,232.80 : x
  2. Step 2: Convert to fraction form
    86,821.60/130,246.80 = 34,232.80/x
  3. Step 3: Cross multiply
    86,821.60x = 130,246.80 × 34,232.80
  4. Step 4: Simplify right side
    86,821.60x = 4,458,712,655.04
  5. Step 5: Solve for x
    x = 4,458,712,655.04/86,821.60
  6. Step 6: Final answer
    x = 51,354.88

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