Home / 83,889.38-115,772.34-48,081.70

Finding the Fourth Proportional to 83,889.38, 115,772.34 and 48,081.70

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Solution

The fourth proportional to 83,889.38, 115,772.34 and 48,081.70 is: 66,355.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,889.38 : 115,772.34 = 48,081.70 : x
  2. Step 2: Convert to fraction form
    83,889.38/115,772.34 = 48,081.70/x
  3. Step 3: Cross multiply
    83,889.38x = 115,772.34 × 48,081.70
  4. Step 4: Simplify right side
    83,889.38x = 5,566,530,920.18
  5. Step 5: Solve for x
    x = 5,566,530,920.18/83,889.38
  6. Step 6: Final answer
    x = 66,355.61

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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.