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Finding the Fourth Proportional to 70,269.51, 105,379.06 and 20,339.27

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Solution

The fourth proportional to 70,269.51, 105,379.06 and 20,339.27 is: 30,501.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,269.51 : 105,379.06 = 20,339.27 : x
  2. Step 2: Convert to fraction form
    70,269.51/105,379.06 = 20,339.27/x
  3. Step 3: Cross multiply
    70,269.51x = 105,379.06 × 20,339.27
  4. Step 4: Simplify right side
    70,269.51x = 2,143,333,188.63
  5. Step 5: Solve for x
    x = 2,143,333,188.63/70,269.51
  6. Step 6: Final answer
    x = 30,501.61

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