Home / 78,272.37-117,413.45-22,116.80

Finding the Fourth Proportional to 78,272.37, 117,413.45 and 22,116.80

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Solution

The fourth proportional to 78,272.37, 117,413.45 and 22,116.80 is: 33,176.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,272.37 : 117,413.45 = 22,116.80 : x
  2. Step 2: Convert to fraction form
    78,272.37/117,413.45 = 22,116.80/x
  3. Step 3: Cross multiply
    78,272.37x = 117,413.45 × 22,116.80
  4. Step 4: Simplify right side
    78,272.37x = 2,596,809,790.96
  5. Step 5: Solve for x
    x = 2,596,809,790.96/78,272.37
  6. Step 6: Final answer
    x = 33,176.58

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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.