Home / 66,134.09-91,265.72-35,919.70

Finding the Fourth Proportional to 66,134.09, 91,265.72 and 35,919.70

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Solution

The fourth proportional to 66,134.09, 91,265.72 and 35,919.70 is: 49,569.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,134.09 : 91,265.72 = 35,919.70 : x
  2. Step 2: Convert to fraction form
    66,134.09/91,265.72 = 35,919.70/x
  3. Step 3: Cross multiply
    66,134.09x = 91,265.72 × 35,919.70
  4. Step 4: Simplify right side
    66,134.09x = 3,278,236,874.92
  5. Step 5: Solve for x
    x = 3,278,236,874.92/66,134.09
  6. Step 6: Final answer
    x = 49,569.55

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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.