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Finding the Fourth Proportional to 85,500.48, 128,299.04 and 46,056.64

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Solution

The fourth proportional to 85,500.48, 128,299.04 and 46,056.64 is: 69,110.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,500.48 : 128,299.04 = 46,056.64 : x
  2. Step 2: Convert to fraction form
    85,500.48/128,299.04 = 46,056.64/x
  3. Step 3: Cross multiply
    85,500.48x = 128,299.04 × 46,056.64
  4. Step 4: Simplify right side
    85,500.48x = 5,909,022,697.63
  5. Step 5: Solve for x
    x = 5,909,022,697.63/85,500.48
  6. Step 6: Final answer
    x = 69,110.99

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