Home / 45,751.45-68,620.20-12,474.22

Finding the Fourth Proportional to 45,751.45, 68,620.20 and 12,474.22

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Solution

The fourth proportional to 45,751.45, 68,620.20 and 12,474.22 is: 18,709.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,751.45 : 68,620.20 = 12,474.22 : x
  2. Step 2: Convert to fraction form
    45,751.45/68,620.20 = 12,474.22/x
  3. Step 3: Cross multiply
    45,751.45x = 68,620.20 × 12,474.22
  4. Step 4: Simplify right side
    45,751.45x = 855,983,471.24
  5. Step 5: Solve for x
    x = 855,983,471.24/45,751.45
  6. Step 6: Final answer
    x = 18,709.43

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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.