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Finding the Fourth Proportional to 84,659.78, 116,832.71 and 47,863.07

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Solution

The fourth proportional to 84,659.78, 116,832.71 and 47,863.07 is: 66,052.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,659.78 : 116,832.71 = 47,863.07 : x
  2. Step 2: Convert to fraction form
    84,659.78/116,832.71 = 47,863.07/x
  3. Step 3: Cross multiply
    84,659.78x = 116,832.71 × 47,863.07
  4. Step 4: Simplify right side
    84,659.78x = 5,591,972,150.64
  5. Step 5: Solve for x
    x = 5,591,972,150.64/84,659.78
  6. Step 6: Final answer
    x = 66,052.29

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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.