Home / 51,578.10-77,375.16-21,996

Finding the Fourth Proportional to 51,578.10, 77,375.16 and 21,996

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Solution

The fourth proportional to 51,578.10, 77,375.16 and 21,996 is: 32,997.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,578.10 : 77,375.16 = 21,996 : x
  2. Step 2: Convert to fraction form
    51,578.10/77,375.16 = 21,996/x
  3. Step 3: Cross multiply
    51,578.10x = 77,375.16 × 21,996
  4. Step 4: Simplify right side
    51,578.10x = 1,701,944,019.36
  5. Step 5: Solve for x
    x = 1,701,944,019.36/51,578.10
  6. Step 6: Final answer
    x = 32,997.42

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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.