Home / 55,363.50-83,078.46-20,306.70

Finding the Fourth Proportional to 55,363.50, 83,078.46 and 20,306.70

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Solution

The fourth proportional to 55,363.50, 83,078.46 and 20,306.70 is: 30,472.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,363.50 : 83,078.46 = 20,306.70 : x
  2. Step 2: Convert to fraction form
    55,363.50/83,078.46 = 20,306.70/x
  3. Step 3: Cross multiply
    55,363.50x = 83,078.46 × 20,306.70
  4. Step 4: Simplify right side
    55,363.50x = 1,687,049,363.68
  5. Step 5: Solve for x
    x = 1,687,049,363.68/55,363.50
  6. Step 6: Final answer
    x = 30,472.23

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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.