Home / 45,714.12-68,578.38-19,419

Finding the Fourth Proportional to 45,714.12, 68,578.38 and 19,419

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Solution

The fourth proportional to 45,714.12, 68,578.38 and 19,419 is: 29,131.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,714.12 : 68,578.38 = 19,419 : x
  2. Step 2: Convert to fraction form
    45,714.12/68,578.38 = 19,419/x
  3. Step 3: Cross multiply
    45,714.12x = 68,578.38 × 19,419
  4. Step 4: Simplify right side
    45,714.12x = 1,331,723,561.22
  5. Step 5: Solve for x
    x = 1,331,723,561.22/45,714.12
  6. Step 6: Final answer
    x = 29,131.56

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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.