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Finding the Fourth Proportional to 80,790.68, 121,210.72 and 41,375.68

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Solution

The fourth proportional to 80,790.68, 121,210.72 and 41,375.68 is: 62,076.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,790.68 : 121,210.72 = 41,375.68 : x
  2. Step 2: Convert to fraction form
    80,790.68/121,210.72 = 41,375.68/x
  3. Step 3: Cross multiply
    80,790.68x = 121,210.72 × 41,375.68
  4. Step 4: Simplify right side
    80,790.68x = 5,015,175,963.29
  5. Step 5: Solve for x
    x = 5,015,175,963.29/80,790.68
  6. Step 6: Final answer
    x = 62,076.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.