Home / 83,464.38-125,201.13-21,135.42

Finding the Fourth Proportional to 83,464.38, 125,201.13 and 21,135.42

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Solution

The fourth proportional to 83,464.38, 125,201.13 and 21,135.42 is: 31,704.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,464.38 : 125,201.13 = 21,135.42 : x
  2. Step 2: Convert to fraction form
    83,464.38/125,201.13 = 21,135.42/x
  3. Step 3: Cross multiply
    83,464.38x = 125,201.13 × 21,135.42
  4. Step 4: Simplify right side
    83,464.38x = 2,646,178,467.02
  5. Step 5: Solve for x
    x = 2,646,178,467.02/83,464.38
  6. Step 6: Final answer
    x = 31,704.28

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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.