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Finding the Fourth Proportional to 70,775.32, 106,199.89 and 28,686.51

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Solution

The fourth proportional to 70,775.32, 106,199.89 and 28,686.51 is: 43,044.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,775.32 : 106,199.89 = 28,686.51 : x
  2. Step 2: Convert to fraction form
    70,775.32/106,199.89 = 28,686.51/x
  3. Step 3: Cross multiply
    70,775.32x = 106,199.89 × 28,686.51
  4. Step 4: Simplify right side
    70,775.32x = 3,046,504,206.48
  5. Step 5: Solve for x
    x = 3,046,504,206.48/70,775.32
  6. Step 6: Final answer
    x = 43,044.73

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