Home / 45,896.06-68,843.82-12,620.72

Finding the Fourth Proportional to 45,896.06, 68,843.82 and 12,620.72

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Solution

The fourth proportional to 45,896.06, 68,843.82 and 12,620.72 is: 18,931.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,896.06 : 68,843.82 = 12,620.72 : x
  2. Step 2: Convert to fraction form
    45,896.06/68,843.82 = 12,620.72/x
  3. Step 3: Cross multiply
    45,896.06x = 68,843.82 × 12,620.72
  4. Step 4: Simplify right side
    45,896.06x = 868,858,575.95
  5. Step 5: Solve for x
    x = 868,858,575.95/45,896.06
  6. Step 6: Final answer
    x = 18,931.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.