Home / 74,863.10-103,286.28-49,382.12

Finding the Fourth Proportional to 74,863.10, 103,286.28 and 49,382.12

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Solution

The fourth proportional to 74,863.10, 103,286.28 and 49,382.12 is: 68,130.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,863.10 : 103,286.28 = 49,382.12 : x
  2. Step 2: Convert to fraction form
    74,863.10/103,286.28 = 49,382.12/x
  3. Step 3: Cross multiply
    74,863.10x = 103,286.28 × 49,382.12
  4. Step 4: Simplify right side
    74,863.10x = 5,100,494,956.88
  5. Step 5: Solve for x
    x = 5,100,494,956.88/74,863.10
  6. Step 6: Final answer
    x = 68,130.97

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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.