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Finding the Fourth Proportional to 70,411.20, 105,505.68 and 25,976.80

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Solution

The fourth proportional to 70,411.20, 105,505.68 and 25,976.80 is: 38,924.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,411.20 : 105,505.68 = 25,976.80 : x
  2. Step 2: Convert to fraction form
    70,411.20/105,505.68 = 25,976.80/x
  3. Step 3: Cross multiply
    70,411.20x = 105,505.68 × 25,976.80
  4. Step 4: Simplify right side
    70,411.20x = 2,740,699,948.22
  5. Step 5: Solve for x
    x = 2,740,699,948.22/70,411.20
  6. Step 6: Final answer
    x = 38,924.20

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