Home / 83,640.20-115,372.76-49,626.27

Finding the Fourth Proportional to 83,640.20, 115,372.76 and 49,626.27

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Solution

The fourth proportional to 83,640.20, 115,372.76 and 49,626.27 is: 68,454.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,640.20 : 115,372.76 = 49,626.27 : x
  2. Step 2: Convert to fraction form
    83,640.20/115,372.76 = 49,626.27/x
  3. Step 3: Cross multiply
    83,640.20x = 115,372.76 × 49,626.27
  4. Step 4: Simplify right side
    83,640.20x = 5,725,519,490.27
  5. Step 5: Solve for x
    x = 5,725,519,490.27/83,640.20
  6. Step 6: Final answer
    x = 68,454.16

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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.