Home / 83,616.03-115,382.43-49,618.67

Finding the Fourth Proportional to 83,616.03, 115,382.43 and 49,618.67

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Solution

The fourth proportional to 83,616.03, 115,382.43 and 49,618.67 is: 68,469.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,616.03 : 115,382.43 = 49,618.67 : x
  2. Step 2: Convert to fraction form
    83,616.03/115,382.43 = 49,618.67/x
  3. Step 3: Cross multiply
    83,616.03x = 115,382.43 × 49,618.67
  4. Step 4: Simplify right side
    83,616.03x = 5,725,122,141.06
  5. Step 5: Solve for x
    x = 5,725,122,141.06/83,616.03
  6. Step 6: Final answer
    x = 68,469.19

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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.