Home / 68,907.78-102,942.99-43,746.35

Finding the Fourth Proportional to 68,907.78, 102,942.99 and 43,746.35

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Solution

The fourth proportional to 68,907.78, 102,942.99 and 43,746.35 is: 65,353.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,907.78 : 102,942.99 = 43,746.35 : x
  2. Step 2: Convert to fraction form
    68,907.78/102,942.99 = 43,746.35/x
  3. Step 3: Cross multiply
    68,907.78x = 102,942.99 × 43,746.35
  4. Step 4: Simplify right side
    68,907.78x = 4,503,379,555.87
  5. Step 5: Solve for x
    x = 4,503,379,555.87/68,907.78
  6. Step 6: Final answer
    x = 65,353.72

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.