Home / 48,078.92-71,992.38-31,392.12

Finding the Fourth Proportional to 48,078.92, 71,992.38 and 31,392.12

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Solution

The fourth proportional to 48,078.92, 71,992.38 and 31,392.12 is: 47,005.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,078.92 : 71,992.38 = 31,392.12 : x
  2. Step 2: Convert to fraction form
    48,078.92/71,992.38 = 31,392.12/x
  3. Step 3: Cross multiply
    48,078.92x = 71,992.38 × 31,392.12
  4. Step 4: Simplify right side
    48,078.92x = 2,259,993,432.05
  5. Step 5: Solve for x
    x = 2,259,993,432.05/48,078.92
  6. Step 6: Final answer
    x = 47,005.91

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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.