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Finding the Fourth Proportional to 85,091.52, 117,414.72 and 47,360.64

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Solution

The fourth proportional to 85,091.52, 117,414.72 and 47,360.64 is: 65,351.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,091.52 : 117,414.72 = 47,360.64 : x
  2. Step 2: Convert to fraction form
    85,091.52/117,414.72 = 47,360.64/x
  3. Step 3: Cross multiply
    85,091.52x = 117,414.72 × 47,360.64
  4. Step 4: Simplify right side
    85,091.52x = 5,560,836,284.62
  5. Step 5: Solve for x
    x = 5,560,836,284.62/85,091.52
  6. Step 6: Final answer
    x = 65,351.24

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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.