Home / 51,413.60-70,954.38-28,754.70

Finding the Fourth Proportional to 51,413.60, 70,954.38 and 28,754.70

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Solution

The fourth proportional to 51,413.60, 70,954.38 and 28,754.70 is: 39,683.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,413.60 : 70,954.38 = 28,754.70 : x
  2. Step 2: Convert to fraction form
    51,413.60/70,954.38 = 28,754.70/x
  3. Step 3: Cross multiply
    51,413.60x = 70,954.38 × 28,754.70
  4. Step 4: Simplify right side
    51,413.60x = 2,040,271,608.56
  5. Step 5: Solve for x
    x = 2,040,271,608.56/51,413.60
  6. Step 6: Final answer
    x = 39,683.50

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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.