Home / 45,751.49-68,625.20-12,471.54

Finding the Fourth Proportional to 45,751.49, 68,625.20 and 12,471.54

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Solution

The fourth proportional to 45,751.49, 68,625.20 and 12,471.54 is: 18,706.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,751.49 : 68,625.20 = 12,471.54 : x
  2. Step 2: Convert to fraction form
    45,751.49/68,625.20 = 12,471.54/x
  3. Step 3: Cross multiply
    45,751.49x = 68,625.20 × 12,471.54
  4. Step 4: Simplify right side
    45,751.49x = 855,861,864.45
  5. Step 5: Solve for x
    x = 855,861,864.45/45,751.49
  6. Step 6: Final answer
    x = 18,706.76

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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.