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Finding the Fourth Proportional to 51,957.44, 77,892.42 and 20,775.68

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Solution

The fourth proportional to 51,957.44, 77,892.42 and 20,775.68 is: 31,146.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,957.44 : 77,892.42 = 20,775.68 : x
  2. Step 2: Convert to fraction form
    51,957.44/77,892.42 = 20,775.68/x
  3. Step 3: Cross multiply
    51,957.44x = 77,892.42 × 20,775.68
  4. Step 4: Simplify right side
    51,957.44x = 1,618,267,992.35
  5. Step 5: Solve for x
    x = 1,618,267,992.35/51,957.44
  6. Step 6: Final answer
    x = 31,146.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.