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Finding the Fourth Proportional to 45,662.16, 68,497.80 and 12,382.80

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Solution

The fourth proportional to 45,662.16, 68,497.80 and 12,382.80 is: 18,575.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,662.16 : 68,497.80 = 12,382.80 : x
  2. Step 2: Convert to fraction form
    45,662.16/68,497.80 = 12,382.80/x
  3. Step 3: Cross multiply
    45,662.16x = 68,497.80 × 12,382.80
  4. Step 4: Simplify right side
    45,662.16x = 848,194,557.84
  5. Step 5: Solve for x
    x = 848,194,557.84/45,662.16
  6. Step 6: Final answer
    x = 18,575.44

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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.