Home / 51,938.48-77,851.56-20,739.44

Finding the Fourth Proportional to 51,938.48, 77,851.56 and 20,739.44

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Solution

The fourth proportional to 51,938.48, 77,851.56 and 20,739.44 is: 31,086.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,938.48 : 77,851.56 = 20,739.44 : x
  2. Step 2: Convert to fraction form
    51,938.48/77,851.56 = 20,739.44/x
  3. Step 3: Cross multiply
    51,938.48x = 77,851.56 × 20,739.44
  4. Step 4: Simplify right side
    51,938.48x = 1,614,597,757.53
  5. Step 5: Solve for x
    x = 1,614,597,757.53/51,938.48
  6. Step 6: Final answer
    x = 31,086.73

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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.