Home / 85,413.60-117,868.32-47,687.04

Finding the Fourth Proportional to 85,413.60, 117,868.32 and 47,687.04

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Solution

The fourth proportional to 85,413.60, 117,868.32 and 47,687.04 is: 65,806.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,413.60 : 117,868.32 = 47,687.04 : x
  2. Step 2: Convert to fraction form
    85,413.60/117,868.32 = 47,687.04/x
  3. Step 3: Cross multiply
    85,413.60x = 117,868.32 × 47,687.04
  4. Step 4: Simplify right side
    85,413.60x = 5,620,791,290.57
  5. Step 5: Solve for x
    x = 5,620,791,290.57/85,413.60
  6. Step 6: Final answer
    x = 65,806.75

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1.5x scale

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.