Home / 55,504.24-83,217.42-20,439.40

Finding the Fourth Proportional to 55,504.24, 83,217.42 and 20,439.40

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Solution

The fourth proportional to 55,504.24, 83,217.42 and 20,439.40 is: 30,644.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,504.24 : 83,217.42 = 20,439.40 : x
  2. Step 2: Convert to fraction form
    55,504.24/83,217.42 = 20,439.40/x
  3. Step 3: Cross multiply
    55,504.24x = 83,217.42 × 20,439.40
  4. Step 4: Simplify right side
    55,504.24x = 1,700,914,134.35
  5. Step 5: Solve for x
    x = 1,700,914,134.35/55,504.24
  6. Step 6: Final answer
    x = 30,644.76

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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.