Home / 90,889.35-125,449.39-52,642.73

Finding the Fourth Proportional to 90,889.35, 125,449.39 and 52,642.73

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Solution

The fourth proportional to 90,889.35, 125,449.39 and 52,642.73 is: 72,659.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,889.35 : 125,449.39 = 52,642.73 : x
  2. Step 2: Convert to fraction form
    90,889.35/125,449.39 = 52,642.73/x
  3. Step 3: Cross multiply
    90,889.35x = 125,449.39 × 52,642.73
  4. Step 4: Simplify right side
    90,889.35x = 6,603,998,745.86
  5. Step 5: Solve for x
    x = 6,603,998,745.86/90,889.35
  6. Step 6: Final answer
    x = 72,659.77

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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.