Home / 90,736.64-125,181.60-66,919.76

Finding the Fourth Proportional to 90,736.64, 125,181.60 and 66,919.76

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Solution

The fourth proportional to 90,736.64, 125,181.60 and 66,919.76 is: 92,323.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,736.64 : 125,181.60 = 66,919.76 : x
  2. Step 2: Convert to fraction form
    90,736.64/125,181.60 = 66,919.76/x
  3. Step 3: Cross multiply
    90,736.64x = 125,181.60 × 66,919.76
  4. Step 4: Simplify right side
    90,736.64x = 8,377,122,628.42
  5. Step 5: Solve for x
    x = 8,377,122,628.42/90,736.64
  6. Step 6: Final answer
    x = 92,323.48

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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.