Home / 45,356.50-68,011.43-20,375.12

Finding the Fourth Proportional to 45,356.50, 68,011.43 and 20,375.12

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Solution

The fourth proportional to 45,356.50, 68,011.43 and 20,375.12 is: 30,552.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,356.50 : 68,011.43 = 20,375.12 : x
  2. Step 2: Convert to fraction form
    45,356.50/68,011.43 = 20,375.12/x
  3. Step 3: Cross multiply
    45,356.50x = 68,011.43 × 20,375.12
  4. Step 4: Simplify right side
    45,356.50x = 1,385,741,115.77
  5. Step 5: Solve for x
    x = 1,385,741,115.77/45,356.50
  6. Step 6: Final answer
    x = 30,552.21

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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.