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Finding the Fourth Proportional to 43,545.81, 65,207.92 and 28,709.71

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Solution

The fourth proportional to 43,545.81, 65,207.92 and 28,709.71 is: 42,991.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,545.81 : 65,207.92 = 28,709.71 : x
  2. Step 2: Convert to fraction form
    43,545.81/65,207.92 = 28,709.71/x
  3. Step 3: Cross multiply
    43,545.81x = 65,207.92 × 28,709.71
  4. Step 4: Simplify right side
    43,545.81x = 1,872,100,329.35
  5. Step 5: Solve for x
    x = 1,872,100,329.35/43,545.81
  6. Step 6: Final answer
    x = 42,991.52

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