Home / 45,716.45-68,583.20-20,758.23

Finding the Fourth Proportional to 45,716.45, 68,583.20 and 20,758.23

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Solution

The fourth proportional to 45,716.45, 68,583.20 and 20,758.23 is: 31,141.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,716.45 : 68,583.20 = 20,758.23 : x
  2. Step 2: Convert to fraction form
    45,716.45/68,583.20 = 20,758.23/x
  3. Step 3: Cross multiply
    45,716.45x = 68,583.20 × 20,758.23
  4. Step 4: Simplify right side
    45,716.45x = 1,423,665,735.94
  5. Step 5: Solve for x
    x = 1,423,665,735.94/45,716.45
  6. Step 6: Final answer
    x = 31,141.22

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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.