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Finding the Fourth Proportional to 72,999.72, 109,346.41 and 46,331.99

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Solution

The fourth proportional to 72,999.72, 109,346.41 and 46,331.99 is: 69,400.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,999.72 : 109,346.41 = 46,331.99 : x
  2. Step 2: Convert to fraction form
    72,999.72/109,346.41 = 46,331.99/x
  3. Step 3: Cross multiply
    72,999.72x = 109,346.41 × 46,331.99
  4. Step 4: Simplify right side
    72,999.72x = 5,066,237,266.65
  5. Step 5: Solve for x
    x = 5,066,237,266.65/72,999.72
  6. Step 6: Final answer
    x = 69,400.77

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