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Finding the Fourth Proportional to 84,179.43, 116,168.29 and 45,939.28

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Solution

The fourth proportional to 84,179.43, 116,168.29 and 45,939.28 is: 63,396.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,179.43 : 116,168.29 = 45,939.28 : x
  2. Step 2: Convert to fraction form
    84,179.43/116,168.29 = 45,939.28/x
  3. Step 3: Cross multiply
    84,179.43x = 116,168.29 × 45,939.28
  4. Step 4: Simplify right side
    84,179.43x = 5,336,687,601.43
  5. Step 5: Solve for x
    x = 5,336,687,601.43/84,179.43
  6. Step 6: Final answer
    x = 63,396.58

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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.