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Finding the Fourth Proportional to 71,754.48, 99,018.72 and 39,924.72

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Solution

The fourth proportional to 71,754.48, 99,018.72 and 39,924.72 is: 55,094.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,754.48 : 99,018.72 = 39,924.72 : x
  2. Step 2: Convert to fraction form
    71,754.48/99,018.72 = 39,924.72/x
  3. Step 3: Cross multiply
    71,754.48x = 99,018.72 × 39,924.72
  4. Step 4: Simplify right side
    71,754.48x = 3,953,294,670.76
  5. Step 5: Solve for x
    x = 3,953,294,670.76/71,754.48
  6. Step 6: Final answer
    x = 55,094.74

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