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Finding the Fourth Proportional to 70,388.90, 105,598.94 and 38,782.69

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Solution

The fourth proportional to 70,388.90, 105,598.94 and 38,782.69 is: 58,182.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,388.90 : 105,598.94 = 38,782.69 : x
  2. Step 2: Convert to fraction form
    70,388.90/105,598.94 = 38,782.69/x
  3. Step 3: Cross multiply
    70,388.90x = 105,598.94 × 38,782.69
  4. Step 4: Simplify right side
    70,388.90x = 4,095,410,954.35
  5. Step 5: Solve for x
    x = 4,095,410,954.35/70,388.90
  6. Step 6: Final answer
    x = 58,182.62

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