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Finding the Fourth Proportional to 85,284.68, 117,693.78 and 47,559.56

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Solution

The fourth proportional to 85,284.68, 117,693.78 and 47,559.56 is: 65,632.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,284.68 : 117,693.78 = 47,559.56 : x
  2. Step 2: Convert to fraction form
    85,284.68/117,693.78 = 47,559.56/x
  3. Step 3: Cross multiply
    85,284.68x = 117,693.78 × 47,559.56
  4. Step 4: Simplify right side
    85,284.68x = 5,597,464,391.54
  5. Step 5: Solve for x
    x = 5,597,464,391.54/85,284.68
  6. Step 6: Final answer
    x = 65,632.71

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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.