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Finding the Fourth Proportional to 45,606.64, 68,414.68 and 12,326.88

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Solution

The fourth proportional to 45,606.64, 68,414.68 and 12,326.88 is: 18,491.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,606.64 : 68,414.68 = 12,326.88 : x
  2. Step 2: Convert to fraction form
    45,606.64/68,414.68 = 12,326.88/x
  3. Step 3: Cross multiply
    45,606.64x = 68,414.68 × 12,326.88
  4. Step 4: Simplify right side
    45,606.64x = 843,339,550.60
  5. Step 5: Solve for x
    x = 843,339,550.60/45,606.64
  6. Step 6: Final answer
    x = 18,491.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.