Home / 85,083.06-117,413.46-47,357.31

Finding the Fourth Proportional to 85,083.06, 117,413.46 and 47,357.31

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Solution

The fourth proportional to 85,083.06, 117,413.46 and 47,357.31 is: 65,352.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,083.06 : 117,413.46 = 47,357.31 : x
  2. Step 2: Convert to fraction form
    85,083.06/117,413.46 = 47,357.31/x
  3. Step 3: Cross multiply
    85,083.06x = 117,413.46 × 47,357.31
  4. Step 4: Simplify right side
    85,083.06x = 5,560,385,623.39
  5. Step 5: Solve for x
    x = 5,560,385,623.39/85,083.06
  6. Step 6: Final answer
    x = 65,352.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.