Home / 45,759.21-68,622.73-13,728.73

Finding the Fourth Proportional to 45,759.21, 68,622.73 and 13,728.73

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Solution

The fourth proportional to 45,759.21, 68,622.73 and 13,728.73 is: 20,588.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,759.21 : 68,622.73 = 13,728.73 : x
  2. Step 2: Convert to fraction form
    45,759.21/68,622.73 = 13,728.73/x
  3. Step 3: Cross multiply
    45,759.21x = 68,622.73 × 13,728.73
  4. Step 4: Simplify right side
    45,759.21x = 942,102,932.03
  5. Step 5: Solve for x
    x = 942,102,932.03/45,759.21
  6. Step 6: Final answer
    x = 20,588.27

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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.