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Finding the Fourth Proportional to 73,985.16, 110,980.98 and 21,399.96

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Solution

The fourth proportional to 73,985.16, 110,980.98 and 21,399.96 is: 32,100.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,985.16 : 110,980.98 = 21,399.96 : x
  2. Step 2: Convert to fraction form
    73,985.16/110,980.98 = 21,399.96/x
  3. Step 3: Cross multiply
    73,985.16x = 110,980.98 × 21,399.96
  4. Step 4: Simplify right side
    73,985.16x = 2,374,988,532.76
  5. Step 5: Solve for x
    x = 2,374,988,532.76/73,985.16
  6. Step 6: Final answer
    x = 32,100.88

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