Home / 53,403.87-80,111.30-20,151.92

Finding the Fourth Proportional to 53,403.87, 80,111.30 and 20,151.92

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Solution

The fourth proportional to 53,403.87, 80,111.30 and 20,151.92 is: 30,229.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,403.87 : 80,111.30 = 20,151.92 : x
  2. Step 2: Convert to fraction form
    53,403.87/80,111.30 = 20,151.92/x
  3. Step 3: Cross multiply
    53,403.87x = 80,111.30 × 20,151.92
  4. Step 4: Simplify right side
    53,403.87x = 1,614,396,608.21
  5. Step 5: Solve for x
    x = 1,614,396,608.21/53,403.87
  6. Step 6: Final answer
    x = 30,229.95

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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.