Home / 45,718.45-68,586.20-20,760.23

Finding the Fourth Proportional to 45,718.45, 68,586.20 and 20,760.23

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Solution

The fourth proportional to 45,718.45, 68,586.20 and 20,760.23 is: 31,144.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,718.45 : 68,586.20 = 20,760.23 : x
  2. Step 2: Convert to fraction form
    45,718.45/68,586.20 = 20,760.23/x
  3. Step 3: Cross multiply
    45,718.45x = 68,586.20 × 20,760.23
  4. Step 4: Simplify right side
    45,718.45x = 1,423,865,286.83
  5. Step 5: Solve for x
    x = 1,423,865,286.83/45,718.45
  6. Step 6: Final answer
    x = 31,144.22

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.