Home / 48,721.12-73,081.44-11,785.12

Finding the Fourth Proportional to 48,721.12, 73,081.44 and 11,785.12

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Solution

The fourth proportional to 48,721.12, 73,081.44 and 11,785.12 is: 17,677.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,721.12 : 73,081.44 = 11,785.12 : x
  2. Step 2: Convert to fraction form
    48,721.12/73,081.44 = 11,785.12/x
  3. Step 3: Cross multiply
    48,721.12x = 73,081.44 × 11,785.12
  4. Step 4: Simplify right side
    48,721.12x = 861,273,540.17
  5. Step 5: Solve for x
    x = 861,273,540.17/48,721.12
  6. Step 6: Final answer
    x = 17,677.62

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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.