Home / 68,273.20-102,778.63-61,407.10

Finding the Fourth Proportional to 68,273.20, 102,778.63 and 61,407.10

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Solution

The fourth proportional to 68,273.20, 102,778.63 and 61,407.10 is: 92,442.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,273.20 : 102,778.63 = 61,407.10 : x
  2. Step 2: Convert to fraction form
    68,273.20/102,778.63 = 61,407.10/x
  3. Step 3: Cross multiply
    68,273.20x = 102,778.63 × 61,407.10
  4. Step 4: Simplify right side
    68,273.20x = 6,311,337,610.27
  5. Step 5: Solve for x
    x = 6,311,337,610.27/68,273.20
  6. Step 6: Final answer
    x = 92,442.39

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.