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Finding the Fourth Proportional to 66,310.75, 91,508.84 and 36,502.75

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Solution

The fourth proportional to 66,310.75, 91,508.84 and 36,502.75 is: 50,373.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,310.75 : 91,508.84 = 36,502.75 : x
  2. Step 2: Convert to fraction form
    66,310.75/91,508.84 = 36,502.75/x
  3. Step 3: Cross multiply
    66,310.75x = 91,508.84 × 36,502.75
  4. Step 4: Simplify right side
    66,310.75x = 3,340,324,309.31
  5. Step 5: Solve for x
    x = 3,340,324,309.31/66,310.75
  6. Step 6: Final answer
    x = 50,373.80

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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.