Home / 57,435.10-86,142.92-15,872.38

Finding the Fourth Proportional to 57,435.10, 86,142.92 and 15,872.38

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Solution

The fourth proportional to 57,435.10, 86,142.92 and 15,872.38 is: 23,805.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,435.10 : 86,142.92 = 15,872.38 : x
  2. Step 2: Convert to fraction form
    57,435.10/86,142.92 = 15,872.38/x
  3. Step 3: Cross multiply
    57,435.10x = 86,142.92 × 15,872.38
  4. Step 4: Simplify right side
    57,435.10x = 1,367,292,729.84
  5. Step 5: Solve for x
    x = 1,367,292,729.84/57,435.10
  6. Step 6: Final answer
    x = 23,805.88

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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.