Home / 45,491.72-68,249.87-13,900.92

Finding the Fourth Proportional to 45,491.72, 68,249.87 and 13,900.92

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Solution

The fourth proportional to 45,491.72, 68,249.87 and 13,900.92 is: 20,855.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,491.72 : 68,249.87 = 13,900.92 : x
  2. Step 2: Convert to fraction form
    45,491.72/68,249.87 = 13,900.92/x
  3. Step 3: Cross multiply
    45,491.72x = 68,249.87 × 13,900.92
  4. Step 4: Simplify right side
    45,491.72x = 948,735,913.38
  5. Step 5: Solve for x
    x = 948,735,913.38/45,491.72
  6. Step 6: Final answer
    x = 20,855.13

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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.