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Finding the Fourth Proportional to 51,115.68, 70,534.80 and 28,758.24

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Solution

The fourth proportional to 51,115.68, 70,534.80 and 28,758.24 is: 39,683.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,115.68 : 70,534.80 = 28,758.24 : x
  2. Step 2: Convert to fraction form
    51,115.68/70,534.80 = 28,758.24/x
  3. Step 3: Cross multiply
    51,115.68x = 70,534.80 × 28,758.24
  4. Step 4: Simplify right side
    51,115.68x = 2,028,456,706.75
  5. Step 5: Solve for x
    x = 2,028,456,706.75/51,115.68
  6. Step 6: Final answer
    x = 39,683.65

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