Home / 68,190.02-102,299-28,747.20

Finding the Fourth Proportional to 68,190.02, 102,299 and 28,747.20

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Solution

The fourth proportional to 68,190.02, 102,299 and 28,747.20 is: 43,126.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,190.02 : 102,299 = 28,747.20 : x
  2. Step 2: Convert to fraction form
    68,190.02/102,299 = 28,747.20/x
  3. Step 3: Cross multiply
    68,190.02x = 102,299 × 28,747.20
  4. Step 4: Simplify right side
    68,190.02x = 2,940,809,812.80
  5. Step 5: Solve for x
    x = 2,940,809,812.80/68,190.02
  6. Step 6: Final answer
    x = 43,126.69

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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.