Home / 52,183.12-72,013-28,309.84

Finding the Fourth Proportional to 52,183.12, 72,013 and 28,309.84

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Solution

The fourth proportional to 52,183.12, 72,013 and 28,309.84 is: 39,067.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,183.12 : 72,013 = 28,309.84 : x
  2. Step 2: Convert to fraction form
    52,183.12/72,013 = 28,309.84/x
  3. Step 3: Cross multiply
    52,183.12x = 72,013 × 28,309.84
  4. Step 4: Simplify right side
    52,183.12x = 2,038,676,507.92
  5. Step 5: Solve for x
    x = 2,038,676,507.92/52,183.12
  6. Step 6: Final answer
    x = 39,067.74

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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.