Home / 45,705.44-68,581.23-20,729.56

Finding the Fourth Proportional to 45,705.44, 68,581.23 and 20,729.56

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Solution

The fourth proportional to 45,705.44, 68,581.23 and 20,729.56 is: 31,104.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,705.44 : 68,581.23 = 20,729.56 : x
  2. Step 2: Convert to fraction form
    45,705.44/68,581.23 = 20,729.56/x
  3. Step 3: Cross multiply
    45,705.44x = 68,581.23 × 20,729.56
  4. Step 4: Simplify right side
    45,705.44x = 1,421,658,601.56
  5. Step 5: Solve for x
    x = 1,421,658,601.56/45,705.44
  6. Step 6: Final answer
    x = 31,104.80

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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.