Home / 51,396.38-77,105.90-21,839.48

Finding the Fourth Proportional to 51,396.38, 77,105.90 and 21,839.48

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Solution

The fourth proportional to 51,396.38, 77,105.90 and 21,839.48 is: 32,764.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,396.38 : 77,105.90 = 21,839.48 : x
  2. Step 2: Convert to fraction form
    51,396.38/77,105.90 = 21,839.48/x
  3. Step 3: Cross multiply
    51,396.38x = 77,105.90 × 21,839.48
  4. Step 4: Simplify right side
    51,396.38x = 1,683,952,430.00
  5. Step 5: Solve for x
    x = 1,683,952,430.00/51,396.38
  6. Step 6: Final answer
    x = 32,764.03

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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.