Home / 74,778.43-103,195.46-40,786.92

Finding the Fourth Proportional to 74,778.43, 103,195.46 and 40,786.92

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Solution

The fourth proportional to 74,778.43, 103,195.46 and 40,786.92 is: 56,286.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,778.43 : 103,195.46 = 40,786.92 : x
  2. Step 2: Convert to fraction form
    74,778.43/103,195.46 = 40,786.92/x
  3. Step 3: Cross multiply
    74,778.43x = 103,195.46 × 40,786.92
  4. Step 4: Simplify right side
    74,778.43x = 4,209,024,455.41
  5. Step 5: Solve for x
    x = 4,209,024,455.41/74,778.43
  6. Step 6: Final answer
    x = 56,286.61

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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.