Home / 40,517.91-55,930.04-30,475.35

Finding the Fourth Proportional to 40,517.91, 55,930.04 and 30,475.35

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Solution

The fourth proportional to 40,517.91, 55,930.04 and 30,475.35 is: 42,067.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,517.91 : 55,930.04 = 30,475.35 : x
  2. Step 2: Convert to fraction form
    40,517.91/55,930.04 = 30,475.35/x
  3. Step 3: Cross multiply
    40,517.91x = 55,930.04 × 30,475.35
  4. Step 4: Simplify right side
    40,517.91x = 1,704,487,722.43
  5. Step 5: Solve for x
    x = 1,704,487,722.43/40,517.91
  6. Step 6: Final answer
    x = 42,067.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.