Home / 55,185.76-82,770.24-20,125.44

Finding the Fourth Proportional to 55,185.76, 82,770.24 and 20,125.44

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Solution

The fourth proportional to 55,185.76, 82,770.24 and 20,125.44 is: 30,185.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,185.76 : 82,770.24 = 20,125.44 : x
  2. Step 2: Convert to fraction form
    55,185.76/82,770.24 = 20,125.44/x
  3. Step 3: Cross multiply
    55,185.76x = 82,770.24 × 20,125.44
  4. Step 4: Simplify right side
    55,185.76x = 1,665,787,498.91
  5. Step 5: Solve for x
    x = 1,665,787,498.91/55,185.76
  6. Step 6: Final answer
    x = 30,185.10

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1.5x scale

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.