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Finding the Fourth Proportional to 85,506, 117,996.08 and 47,780.56

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Solution

The fourth proportional to 85,506, 117,996.08 and 47,780.56 is: 65,935.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,506 : 117,996.08 = 47,780.56 : x
  2. Step 2: Convert to fraction form
    85,506/117,996.08 = 47,780.56/x
  3. Step 3: Cross multiply
    85,506x = 117,996.08 × 47,780.56
  4. Step 4: Simplify right side
    85,506x = 5,637,918,780.20
  5. Step 5: Solve for x
    x = 5,637,918,780.20/85,506
  6. Step 6: Final answer
    x = 65,935.94

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