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Finding the Fourth Proportional to 66,310.50, 91,508.67 and 36,502.50

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Solution

The fourth proportional to 66,310.50, 91,508.67 and 36,502.50 is: 50,373.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,310.50 : 91,508.67 = 36,502.50 : x
  2. Step 2: Convert to fraction form
    66,310.50/91,508.67 = 36,502.50/x
  3. Step 3: Cross multiply
    66,310.50x = 91,508.67 × 36,502.50
  4. Step 4: Simplify right side
    66,310.50x = 3,340,295,226.68
  5. Step 5: Solve for x
    x = 3,340,295,226.68/66,310.50
  6. Step 6: Final answer
    x = 50,373.55

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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.