Home / 78,413.66-117,640.30-34,029.62

Finding the Fourth Proportional to 78,413.66, 117,640.30 and 34,029.62

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Solution

The fourth proportional to 78,413.66, 117,640.30 and 34,029.62 is: 51,053.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,413.66 : 117,640.30 = 34,029.62 : x
  2. Step 2: Convert to fraction form
    78,413.66/117,640.30 = 34,029.62/x
  3. Step 3: Cross multiply
    78,413.66x = 117,640.30 × 34,029.62
  4. Step 4: Simplify right side
    78,413.66x = 4,003,254,705.69
  5. Step 5: Solve for x
    x = 4,003,254,705.69/78,413.66
  6. Step 6: Final answer
    x = 51,053.03

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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.