Home / 68,266.24-102,399.32-21,519.10

Finding the Fourth Proportional to 68,266.24, 102,399.32 and 21,519.10

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Solution

The fourth proportional to 68,266.24, 102,399.32 and 21,519.10 is: 32,278.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,266.24 : 102,399.32 = 21,519.10 : x
  2. Step 2: Convert to fraction form
    68,266.24/102,399.32 = 21,519.10/x
  3. Step 3: Cross multiply
    68,266.24x = 102,399.32 × 21,519.10
  4. Step 4: Simplify right side
    68,266.24x = 2,203,541,207.01
  5. Step 5: Solve for x
    x = 2,203,541,207.01/68,266.24
  6. Step 6: Final answer
    x = 32,278.64

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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.