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Finding the Fourth Proportional to 51,799.68, 77,647.23 and 20,190

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Solution

The fourth proportional to 51,799.68, 77,647.23 and 20,190 is: 30,264.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,799.68 : 77,647.23 = 20,190 : x
  2. Step 2: Convert to fraction form
    51,799.68/77,647.23 = 20,190/x
  3. Step 3: Cross multiply
    51,799.68x = 77,647.23 × 20,190
  4. Step 4: Simplify right side
    51,799.68x = 1,567,697,573.70
  5. Step 5: Solve for x
    x = 1,567,697,573.70/51,799.68
  6. Step 6: Final answer
    x = 30,264.62

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