Home / 55,109.20-76,049.88-31,235.44

Finding the Fourth Proportional to 55,109.20, 76,049.88 and 31,235.44

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Solution

The fourth proportional to 55,109.20, 76,049.88 and 31,235.44 is: 43,104.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,109.20 : 76,049.88 = 31,235.44 : x
  2. Step 2: Convert to fraction form
    55,109.20/76,049.88 = 31,235.44/x
  3. Step 3: Cross multiply
    55,109.20x = 76,049.88 × 31,235.44
  4. Step 4: Simplify right side
    55,109.20x = 2,375,451,463.75
  5. Step 5: Solve for x
    x = 2,375,451,463.75/55,109.20
  6. Step 6: Final answer
    x = 43,104.44

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1.5x scale

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.