Home / 52,183.05-72,012.68-28,309.78

Finding the Fourth Proportional to 52,183.05, 72,012.68 and 28,309.78

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Solution

The fourth proportional to 52,183.05, 72,012.68 and 28,309.78 is: 39,067.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,183.05 : 72,012.68 = 28,309.78 : x
  2. Step 2: Convert to fraction form
    52,183.05/72,012.68 = 28,309.78/x
  3. Step 3: Cross multiply
    52,183.05x = 72,012.68 × 28,309.78
  4. Step 4: Simplify right side
    52,183.05x = 2,038,663,128.01
  5. Step 5: Solve for x
    x = 2,038,663,128.01/52,183.05
  6. Step 6: Final answer
    x = 39,067.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.