Home / 53,806.28-80,706.30-20,529.71

Finding the Fourth Proportional to 53,806.28, 80,706.30 and 20,529.71

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Solution

The fourth proportional to 53,806.28, 80,706.30 and 20,529.71 is: 30,793.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,806.28 : 80,706.30 = 20,529.71 : x
  2. Step 2: Convert to fraction form
    53,806.28/80,706.30 = 20,529.71/x
  3. Step 3: Cross multiply
    53,806.28x = 80,706.30 × 20,529.71
  4. Step 4: Simplify right side
    53,806.28x = 1,656,876,934.17
  5. Step 5: Solve for x
    x = 1,656,876,934.17/53,806.28
  6. Step 6: Final answer
    x = 30,793.37

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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.