Home / 55,729.15-76,906.22-31,856.34

Finding the Fourth Proportional to 55,729.15, 76,906.22 and 31,856.34

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Solution

The fourth proportional to 55,729.15, 76,906.22 and 31,856.34 is: 43,961.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,729.15 : 76,906.22 = 31,856.34 : x
  2. Step 2: Convert to fraction form
    55,729.15/76,906.22 = 31,856.34/x
  3. Step 3: Cross multiply
    55,729.15x = 76,906.22 × 31,856.34
  4. Step 4: Simplify right side
    55,729.15x = 2,449,950,692.43
  5. Step 5: Solve for x
    x = 2,449,950,692.43/55,729.15
  6. Step 6: Final answer
    x = 43,961.75

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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.