Home / 45,145.91-62,270.41-30,974.15

Finding the Fourth Proportional to 45,145.91, 62,270.41 and 30,974.15

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Solution

The fourth proportional to 45,145.91, 62,270.41 and 30,974.15 is: 42,723.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,145.91 : 62,270.41 = 30,974.15 : x
  2. Step 2: Convert to fraction form
    45,145.91/62,270.41 = 30,974.15/x
  3. Step 3: Cross multiply
    45,145.91x = 62,270.41 × 30,974.15
  4. Step 4: Simplify right side
    45,145.91x = 1,928,772,553.68
  5. Step 5: Solve for x
    x = 1,928,772,553.68/45,145.91
  6. Step 6: Final answer
    x = 42,723.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.