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Finding the Fourth Proportional to 85,473.45, 117,952.74 and 47,235.60

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Solution

The fourth proportional to 85,473.45, 117,952.74 and 47,235.60 is: 65,184.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,473.45 : 117,952.74 = 47,235.60 : x
  2. Step 2: Convert to fraction form
    85,473.45/117,952.74 = 47,235.60/x
  3. Step 3: Cross multiply
    85,473.45x = 117,952.74 × 47,235.60
  4. Step 4: Simplify right side
    85,473.45x = 5,571,568,445.54
  5. Step 5: Solve for x
    x = 5,571,568,445.54/85,473.45
  6. Step 6: Final answer
    x = 65,184.78

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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.