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Finding the Fourth Proportional to 57,776, 86,664 and 14,000

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Solution

The fourth proportional to 57,776, 86,664 and 14,000 is: 21,000

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,776 : 86,664 = 14,000 : x
  2. Step 2: Convert to fraction form
    57,776/86,664 = 14,000/x
  3. Step 3: Cross multiply
    57,776x = 86,664 × 14,000
  4. Step 4: Simplify right side
    57,776x = 1,213,296,000
  5. Step 5: Solve for x
    x = 1,213,296,000/57,776
  6. Step 6: Final answer
    x = 21,000

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