Home / 72,014.76-99,382.41-40,183.02

Finding the Fourth Proportional to 72,014.76, 99,382.41 and 40,183.02

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Solution

The fourth proportional to 72,014.76, 99,382.41 and 40,183.02 is: 55,453.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,014.76 : 99,382.41 = 40,183.02 : x
  2. Step 2: Convert to fraction form
    72,014.76/99,382.41 = 40,183.02/x
  3. Step 3: Cross multiply
    72,014.76x = 99,382.41 × 40,183.02
  4. Step 4: Simplify right side
    72,014.76x = 3,993,485,368.68
  5. Step 5: Solve for x
    x = 3,993,485,368.68/72,014.76
  6. Step 6: Final answer
    x = 55,453.71

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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.