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Finding the Fourth Proportional to 72,905.01, 99,952.75 and 71,576.40

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Solution

The fourth proportional to 72,905.01, 99,952.75 and 71,576.40 is: 98,131.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,905.01 : 99,952.75 = 71,576.40 : x
  2. Step 2: Convert to fraction form
    72,905.01/99,952.75 = 71,576.40/x
  3. Step 3: Cross multiply
    72,905.01x = 99,952.75 × 71,576.40
  4. Step 4: Simplify right side
    72,905.01x = 7,154,258,015.10
  5. Step 5: Solve for x
    x = 7,154,258,015.10/72,905.01
  6. Step 6: Final answer
    x = 98,131.23

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