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Finding the Fourth Proportional to 55,310.12, 82,965.02 and 13,757.12

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Solution

The fourth proportional to 55,310.12, 82,965.02 and 13,757.12 is: 20,635.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,310.12 : 82,965.02 = 13,757.12 : x
  2. Step 2: Convert to fraction form
    55,310.12/82,965.02 = 13,757.12/x
  3. Step 3: Cross multiply
    55,310.12x = 82,965.02 × 13,757.12
  4. Step 4: Simplify right side
    55,310.12x = 1,141,359,252.33
  5. Step 5: Solve for x
    x = 1,141,359,252.33/55,310.12
  6. Step 6: Final answer
    x = 20,635.63

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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.