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Finding the Fourth Proportional to 42,703.80, 64,080.66 and 30,845.88

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Solution

The fourth proportional to 42,703.80, 64,080.66 and 30,845.88 is: 46,286.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,703.80 : 64,080.66 = 30,845.88 : x
  2. Step 2: Convert to fraction form
    42,703.80/64,080.66 = 30,845.88/x
  3. Step 3: Cross multiply
    42,703.80x = 64,080.66 × 30,845.88
  4. Step 4: Simplify right side
    42,703.80x = 1,976,624,348.68
  5. Step 5: Solve for x
    x = 1,976,624,348.68/42,703.80
  6. Step 6: Final answer
    x = 46,286.85

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