Home / 71,072.21-106,607.79-28,942.39

Finding the Fourth Proportional to 71,072.21, 106,607.79 and 28,942.39

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Solution

The fourth proportional to 71,072.21, 106,607.79 and 28,942.39 is: 43,413.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,072.21 : 106,607.79 = 28,942.39 : x
  2. Step 2: Convert to fraction form
    71,072.21/106,607.79 = 28,942.39/x
  3. Step 3: Cross multiply
    71,072.21x = 106,607.79 × 28,942.39
  4. Step 4: Simplify right side
    71,072.21x = 3,085,484,235.22
  5. Step 5: Solve for x
    x = 3,085,484,235.22/71,072.21
  6. Step 6: Final answer
    x = 43,413.37

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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.