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Finding the Fourth Proportional to 82,758.42, 124,130.34 and 51,173.28

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Solution

The fourth proportional to 82,758.42, 124,130.34 and 51,173.28 is: 76,755.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,758.42 : 124,130.34 = 51,173.28 : x
  2. Step 2: Convert to fraction form
    82,758.42/124,130.34 = 51,173.28/x
  3. Step 3: Cross multiply
    82,758.42x = 124,130.34 × 51,173.28
  4. Step 4: Simplify right side
    82,758.42x = 6,352,156,645.32
  5. Step 5: Solve for x
    x = 6,352,156,645.32/82,758.42
  6. Step 6: Final answer
    x = 76,755.41

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