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Finding the Fourth Proportional to 89,708.40, 134,562.60 and 58,215.60

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Solution

The fourth proportional to 89,708.40, 134,562.60 and 58,215.60 is: 87,323.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,708.40 : 134,562.60 = 58,215.60 : x
  2. Step 2: Convert to fraction form
    89,708.40/134,562.60 = 58,215.60/x
  3. Step 3: Cross multiply
    89,708.40x = 134,562.60 × 58,215.60
  4. Step 4: Simplify right side
    89,708.40x = 7,833,642,496.56
  5. Step 5: Solve for x
    x = 7,833,642,496.56/89,708.40
  6. Step 6: Final answer
    x = 87,323.40

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