Home / 45,356.87-68,011.99-20,375.49

Finding the Fourth Proportional to 45,356.87, 68,011.99 and 20,375.49

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Solution

The fourth proportional to 45,356.87, 68,011.99 and 20,375.49 is: 30,552.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,356.87 : 68,011.99 = 20,375.49 : x
  2. Step 2: Convert to fraction form
    45,356.87/68,011.99 = 20,375.49/x
  3. Step 3: Cross multiply
    45,356.87x = 68,011.99 × 20,375.49
  4. Step 4: Simplify right side
    45,356.87x = 1,385,777,826.23
  5. Step 5: Solve for x
    x = 1,385,777,826.23/45,356.87
  6. Step 6: Final answer
    x = 30,552.76

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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.