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Finding the Fourth Proportional to 84,042.76, 115,976.07 and 45,801.54

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Solution

The fourth proportional to 84,042.76, 115,976.07 and 45,801.54 is: 63,204.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,042.76 : 115,976.07 = 45,801.54 : x
  2. Step 2: Convert to fraction form
    84,042.76/115,976.07 = 45,801.54/x
  3. Step 3: Cross multiply
    84,042.76x = 115,976.07 × 45,801.54
  4. Step 4: Simplify right side
    84,042.76x = 5,311,882,609.15
  5. Step 5: Solve for x
    x = 5,311,882,609.15/84,042.76
  6. Step 6: Final answer
    x = 63,204.52

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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.