Home / 68,945.50-103,416.21-19,028.60

Finding the Fourth Proportional to 68,945.50, 103,416.21 and 19,028.60

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Solution

The fourth proportional to 68,945.50, 103,416.21 and 19,028.60 is: 28,542.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,945.50 : 103,416.21 = 19,028.60 : x
  2. Step 2: Convert to fraction form
    68,945.50/103,416.21 = 19,028.60/x
  3. Step 3: Cross multiply
    68,945.50x = 103,416.21 × 19,028.60
  4. Step 4: Simplify right side
    68,945.50x = 1,967,865,693.61
  5. Step 5: Solve for x
    x = 1,967,865,693.61/68,945.50
  6. Step 6: Final answer
    x = 28,542.34

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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.