Home / 40,619.78-60,912.25-13,968.46

Finding the Fourth Proportional to 40,619.78, 60,912.25 and 13,968.46

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Solution

The fourth proportional to 40,619.78, 60,912.25 and 13,968.46 is: 20,946.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,619.78 : 60,912.25 = 13,968.46 : x
  2. Step 2: Convert to fraction form
    40,619.78/60,912.25 = 13,968.46/x
  3. Step 3: Cross multiply
    40,619.78x = 60,912.25 × 13,968.46
  4. Step 4: Simplify right side
    40,619.78x = 850,850,140.43
  5. Step 5: Solve for x
    x = 850,850,140.43/40,619.78
  6. Step 6: Final answer
    x = 20,946.69

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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.