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Finding the Fourth Proportional to 51,718.47, 71,379.80 and 48,341.61

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Solution

The fourth proportional to 51,718.47, 71,379.80 and 48,341.61 is: 66,719.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,718.47 : 71,379.80 = 48,341.61 : x
  2. Step 2: Convert to fraction form
    51,718.47/71,379.80 = 48,341.61/x
  3. Step 3: Cross multiply
    51,718.47x = 71,379.80 × 48,341.61
  4. Step 4: Simplify right side
    51,718.47x = 3,450,614,393.05
  5. Step 5: Solve for x
    x = 3,450,614,393.05/51,718.47
  6. Step 6: Final answer
    x = 66,719.19

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