Home / 71,315.10-107,049.45-40,211.10

Finding the Fourth Proportional to 71,315.10, 107,049.45 and 40,211.10

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Solution

The fourth proportional to 71,315.10, 107,049.45 and 40,211.10 is: 60,359.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,315.10 : 107,049.45 = 40,211.10 : x
  2. Step 2: Convert to fraction form
    71,315.10/107,049.45 = 40,211.10/x
  3. Step 3: Cross multiply
    71,315.10x = 107,049.45 × 40,211.10
  4. Step 4: Simplify right side
    71,315.10x = 4,304,576,138.90
  5. Step 5: Solve for x
    x = 4,304,576,138.90/71,315.10
  6. Step 6: Final answer
    x = 60,359.95

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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.