Home / 85,346.63-117,778.26-47,620.88

Finding the Fourth Proportional to 85,346.63, 117,778.26 and 47,620.88

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Solution

The fourth proportional to 85,346.63, 117,778.26 and 47,620.88 is: 65,716.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,346.63 : 117,778.26 = 47,620.88 : x
  2. Step 2: Convert to fraction form
    85,346.63/117,778.26 = 47,620.88/x
  3. Step 3: Cross multiply
    85,346.63x = 117,778.26 × 47,620.88
  4. Step 4: Simplify right side
    85,346.63x = 5,608,703,797.18
  5. Step 5: Solve for x
    x = 5,608,703,797.18/85,346.63
  6. Step 6: Final answer
    x = 65,716.76

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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.