Home / 54,511.92-75,234.15-30,640.14

Finding the Fourth Proportional to 54,511.92, 75,234.15 and 30,640.14

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Solution

The fourth proportional to 54,511.92, 75,234.15 and 30,640.14 is: 42,287.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,511.92 : 75,234.15 = 30,640.14 : x
  2. Step 2: Convert to fraction form
    54,511.92/75,234.15 = 30,640.14/x
  3. Step 3: Cross multiply
    54,511.92x = 75,234.15 × 30,640.14
  4. Step 4: Simplify right side
    54,511.92x = 2,305,184,888.78
  5. Step 5: Solve for x
    x = 2,305,184,888.78/54,511.92
  6. Step 6: Final answer
    x = 42,287.72

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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.