Home / 53,439.45-80,163.78-13,996.55

Finding the Fourth Proportional to 53,439.45, 80,163.78 and 13,996.55

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Solution

The fourth proportional to 53,439.45, 80,163.78 and 13,996.55 is: 20,996.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,439.45 : 80,163.78 = 13,996.55 : x
  2. Step 2: Convert to fraction form
    53,439.45/80,163.78 = 13,996.55/x
  3. Step 3: Cross multiply
    53,439.45x = 80,163.78 × 13,996.55
  4. Step 4: Simplify right side
    53,439.45x = 1,122,016,051.96
  5. Step 5: Solve for x
    x = 1,122,016,051.96/53,439.45
  6. Step 6: Final answer
    x = 20,996.03

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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.