Home / 53,529.80-80,211.30-20,231.70

Finding the Fourth Proportional to 53,529.80, 80,211.30 and 20,231.70

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Solution

The fourth proportional to 53,529.80, 80,211.30 and 20,231.70 is: 30,316.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,529.80 : 80,211.30 = 20,231.70 : x
  2. Step 2: Convert to fraction form
    53,529.80/80,211.30 = 20,231.70/x
  3. Step 3: Cross multiply
    53,529.80x = 80,211.30 × 20,231.70
  4. Step 4: Simplify right side
    53,529.80x = 1,622,810,958.21
  5. Step 5: Solve for x
    x = 1,622,810,958.21/53,529.80
  6. Step 6: Final answer
    x = 30,316.03

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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.