Home / 85,413.11-117,870.97-47,173.62

Finding the Fourth Proportional to 85,413.11, 117,870.97 and 47,173.62

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Solution

The fourth proportional to 85,413.11, 117,870.97 and 47,173.62 is: 65,100.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,413.11 : 117,870.97 = 47,173.62 : x
  2. Step 2: Convert to fraction form
    85,413.11/117,870.97 = 47,173.62/x
  3. Step 3: Cross multiply
    85,413.11x = 117,870.97 × 47,173.62
  4. Step 4: Simplify right side
    85,413.11x = 5,560,399,898.48
  5. Step 5: Solve for x
    x = 5,560,399,898.48/85,413.11
  6. Step 6: Final answer
    x = 65,100.08

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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.