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Finding the Fourth Proportional to 66,234.56, 91,403.64 and 36,426.56

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Solution

The fourth proportional to 66,234.56, 91,403.64 and 36,426.56 is: 50,268.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,234.56 : 91,403.64 = 36,426.56 : x
  2. Step 2: Convert to fraction form
    66,234.56/91,403.64 = 36,426.56/x
  3. Step 3: Cross multiply
    66,234.56x = 91,403.64 × 36,426.56
  4. Step 4: Simplify right side
    66,234.56x = 3,329,520,176.68
  5. Step 5: Solve for x
    x = 3,329,520,176.68/66,234.56
  6. Step 6: Final answer
    x = 50,268.62

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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.