Home / 53,789.76-80,687.27-20,503.62

Finding the Fourth Proportional to 53,789.76, 80,687.27 and 20,503.62

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Solution

The fourth proportional to 53,789.76, 80,687.27 and 20,503.62 is: 30,756.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,789.76 : 80,687.27 = 20,503.62 : x
  2. Step 2: Convert to fraction form
    53,789.76/80,687.27 = 20,503.62/x
  3. Step 3: Cross multiply
    53,789.76x = 80,687.27 × 20,503.62
  4. Step 4: Simplify right side
    53,789.76x = 1,654,381,122.92
  5. Step 5: Solve for x
    x = 1,654,381,122.92/53,789.76
  6. Step 6: Final answer
    x = 30,756.43

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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.