Home / 85,219.64-117,613.22-51,245.51

Finding the Fourth Proportional to 85,219.64, 117,613.22 and 51,245.51

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Solution

The fourth proportional to 85,219.64, 117,613.22 and 51,245.51 is: 70,724.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,219.64 : 117,613.22 = 51,245.51 : x
  2. Step 2: Convert to fraction form
    85,219.64/117,613.22 = 51,245.51/x
  3. Step 3: Cross multiply
    85,219.64x = 117,613.22 × 51,245.51
  4. Step 4: Simplify right side
    85,219.64x = 6,027,149,258.92
  5. Step 5: Solve for x
    x = 6,027,149,258.92/85,219.64
  6. Step 6: Final answer
    x = 70,724.88

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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.