Home / 45,455.27-68,186.84-13,872.44

Finding the Fourth Proportional to 45,455.27, 68,186.84 and 13,872.44

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Solution

The fourth proportional to 45,455.27, 68,186.84 and 13,872.44 is: 20,809.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,455.27 : 68,186.84 = 13,872.44 : x
  2. Step 2: Convert to fraction form
    45,455.27/68,186.84 = 13,872.44/x
  3. Step 3: Cross multiply
    45,455.27x = 68,186.84 × 13,872.44
  4. Step 4: Simplify right side
    45,455.27x = 945,917,846.69
  5. Step 5: Solve for x
    x = 945,917,846.69/45,455.27
  6. Step 6: Final answer
    x = 20,809.86

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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.