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Finding the Fourth Proportional to 64,509.96, 89,023.68 and 36,215.70

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Solution

The fourth proportional to 64,509.96, 89,023.68 and 36,215.70 is: 49,977.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,509.96 : 89,023.68 = 36,215.70 : x
  2. Step 2: Convert to fraction form
    64,509.96/89,023.68 = 36,215.70/x
  3. Step 3: Cross multiply
    64,509.96x = 89,023.68 × 36,215.70
  4. Step 4: Simplify right side
    64,509.96x = 3,224,054,887.78
  5. Step 5: Solve for x
    x = 3,224,054,887.78/64,509.96
  6. Step 6: Final answer
    x = 49,977.63

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