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Finding the Fourth Proportional to 70,875.54, 106,313.31 and 66,545.28

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Solution

The fourth proportional to 70,875.54, 106,313.31 and 66,545.28 is: 99,817.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,875.54 : 106,313.31 = 66,545.28 : x
  2. Step 2: Convert to fraction form
    70,875.54/106,313.31 = 66,545.28/x
  3. Step 3: Cross multiply
    70,875.54x = 106,313.31 × 66,545.28
  4. Step 4: Simplify right side
    70,875.54x = 7,074,648,981.68
  5. Step 5: Solve for x
    x = 7,074,648,981.68/70,875.54
  6. Step 6: Final answer
    x = 99,817.92

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