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Finding the Fourth Proportional to 66,234.64, 91,403.80 and 36,426.64

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Solution

The fourth proportional to 66,234.64, 91,403.80 and 36,426.64 is: 50,268.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,234.64 : 91,403.80 = 36,426.64 : x
  2. Step 2: Convert to fraction form
    66,234.64/91,403.80 = 36,426.64/x
  3. Step 3: Cross multiply
    66,234.64x = 91,403.80 × 36,426.64
  4. Step 4: Simplify right side
    66,234.64x = 3,329,533,317.23
  5. Step 5: Solve for x
    x = 3,329,533,317.23/66,234.64
  6. Step 6: Final answer
    x = 50,268.76

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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.