Home / 45,147.90-67,825.62-31,851.48

Finding the Fourth Proportional to 45,147.90, 67,825.62 and 31,851.48

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Solution

The fourth proportional to 45,147.90, 67,825.62 and 31,851.48 is: 47,850.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,147.90 : 67,825.62 = 31,851.48 : x
  2. Step 2: Convert to fraction form
    45,147.90/67,825.62 = 31,851.48/x
  3. Step 3: Cross multiply
    45,147.90x = 67,825.62 × 31,851.48
  4. Step 4: Simplify right side
    45,147.90x = 2,160,346,378.92
  5. Step 5: Solve for x
    x = 2,160,346,378.92/45,147.90
  6. Step 6: Final answer
    x = 47,850.43

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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.