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Finding the Fourth Proportional to 72,157.51, 99,580.44 and 40,326.41

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Solution

The fourth proportional to 72,157.51, 99,580.44 and 40,326.41 is: 55,652.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,157.51 : 99,580.44 = 40,326.41 : x
  2. Step 2: Convert to fraction form
    72,157.51/99,580.44 = 40,326.41/x
  3. Step 3: Cross multiply
    72,157.51x = 99,580.44 × 40,326.41
  4. Step 4: Simplify right side
    72,157.51x = 4,015,721,752.24
  5. Step 5: Solve for x
    x = 4,015,721,752.24/72,157.51
  6. Step 6: Final answer
    x = 55,652.16

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