Home / 45,704.40-68,578.20-19,431.60

Finding the Fourth Proportional to 45,704.40, 68,578.20 and 19,431.60

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Solution

The fourth proportional to 45,704.40, 68,578.20 and 19,431.60 is: 29,156.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,704.40 : 68,578.20 = 19,431.60 : x
  2. Step 2: Convert to fraction form
    45,704.40/68,578.20 = 19,431.60/x
  3. Step 3: Cross multiply
    45,704.40x = 68,578.20 × 19,431.60
  4. Step 4: Simplify right side
    45,704.40x = 1,332,584,151.12
  5. Step 5: Solve for x
    x = 1,332,584,151.12/45,704.40
  6. Step 6: Final answer
    x = 29,156.58

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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.