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Finding the Fourth Proportional to 85,458.44, 117,933.88 and 47,218.88

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Solution

The fourth proportional to 85,458.44, 117,933.88 and 47,218.88 is: 65,162.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,458.44 : 117,933.88 = 47,218.88 : x
  2. Step 2: Convert to fraction form
    85,458.44/117,933.88 = 47,218.88/x
  3. Step 3: Cross multiply
    85,458.44x = 117,933.88 × 47,218.88
  4. Step 4: Simplify right side
    85,458.44x = 5,568,705,727.65
  5. Step 5: Solve for x
    x = 5,568,705,727.65/85,458.44
  6. Step 6: Final answer
    x = 65,162.74

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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.