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Finding the Fourth Proportional to 83,481.54, 115,205.00 and 45,755.79

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Solution

The fourth proportional to 83,481.54, 115,205.00 and 45,755.79 is: 63,143.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,481.54 : 115,205.00 = 45,755.79 : x
  2. Step 2: Convert to fraction form
    83,481.54/115,205.00 = 45,755.79/x
  3. Step 3: Cross multiply
    83,481.54x = 115,205.00 × 45,755.79
  4. Step 4: Simplify right side
    83,481.54x = 5,271,295,558.17
  5. Step 5: Solve for x
    x = 5,271,295,558.17/83,481.54
  6. Step 6: Final answer
    x = 63,143.25

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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.