Home / 45,450.78-68,175.99-13,860.75

Finding the Fourth Proportional to 45,450.78, 68,175.99 and 13,860.75

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Solution

The fourth proportional to 45,450.78, 68,175.99 and 13,860.75 is: 20,791.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,450.78 : 68,175.99 = 13,860.75 : x
  2. Step 2: Convert to fraction form
    45,450.78/68,175.99 = 13,860.75/x
  3. Step 3: Cross multiply
    45,450.78x = 68,175.99 × 13,860.75
  4. Step 4: Simplify right side
    45,450.78x = 944,970,468.23
  5. Step 5: Solve for x
    x = 944,970,468.23/45,450.78
  6. Step 6: Final answer
    x = 20,791.07

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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.