Home / 74,183.32-102,371.88-40,190.86

Finding the Fourth Proportional to 74,183.32, 102,371.88 and 40,190.86

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Solution

The fourth proportional to 74,183.32, 102,371.88 and 40,190.86 is: 55,462.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,183.32 : 102,371.88 = 40,190.86 : x
  2. Step 2: Convert to fraction form
    74,183.32/102,371.88 = 40,190.86/x
  3. Step 3: Cross multiply
    74,183.32x = 102,371.88 × 40,190.86
  4. Step 4: Simplify right side
    74,183.32x = 4,114,413,897.02
  5. Step 5: Solve for x
    x = 4,114,413,897.02/74,183.32
  6. Step 6: Final answer
    x = 55,462.79

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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.