Home / 45,778.56-68,651.52-20,797.68

Finding the Fourth Proportional to 45,778.56, 68,651.52 and 20,797.68

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Solution

The fourth proportional to 45,778.56, 68,651.52 and 20,797.68 is: 31,189.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,778.56 : 68,651.52 = 20,797.68 : x
  2. Step 2: Convert to fraction form
    45,778.56/68,651.52 = 20,797.68/x
  3. Step 3: Cross multiply
    45,778.56x = 68,651.52 × 20,797.68
  4. Step 4: Simplify right side
    45,778.56x = 1,427,792,344.47
  5. Step 5: Solve for x
    x = 1,427,792,344.47/45,778.56
  6. Step 6: Final answer
    x = 31,189.11

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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.