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Finding the Fourth Proportional to 66,134.59, 91,266.82 and 35,919.93

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Solution

The fourth proportional to 66,134.59, 91,266.82 and 35,919.93 is: 49,570.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,134.59 : 91,266.82 = 35,919.93 : x
  2. Step 2: Convert to fraction form
    66,134.59/91,266.82 = 35,919.93/x
  3. Step 3: Cross multiply
    66,134.59x = 91,266.82 × 35,919.93
  4. Step 4: Simplify right side
    66,134.59x = 3,278,297,785.72
  5. Step 5: Solve for x
    x = 3,278,297,785.72/66,134.59
  6. Step 6: Final answer
    x = 49,570.09

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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.