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Finding the Fourth Proportional to 43,103.63, 64,655.44 and 11,938.88

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Solution

The fourth proportional to 43,103.63, 64,655.44 and 11,938.88 is: 17,908.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,103.63 : 64,655.44 = 11,938.88 : x
  2. Step 2: Convert to fraction form
    43,103.63/64,655.44 = 11,938.88/x
  3. Step 3: Cross multiply
    43,103.63x = 64,655.44 × 11,938.88
  4. Step 4: Simplify right side
    43,103.63x = 771,913,539.51
  5. Step 5: Solve for x
    x = 771,913,539.51/43,103.63
  6. Step 6: Final answer
    x = 17,908.32

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