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Finding the Fourth Proportional to 53,413.70, 80,120.55 and 53,413.70

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Solution

The fourth proportional to 53,413.70, 80,120.55 and 53,413.70 is: 80,120.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,413.70 : 80,120.55 = 53,413.70 : x
  2. Step 2: Convert to fraction form
    53,413.70/80,120.55 = 53,413.70/x
  3. Step 3: Cross multiply
    53,413.70x = 80,120.55 × 53,413.70
  4. Step 4: Simplify right side
    53,413.70x = 4,279,535,021.54
  5. Step 5: Solve for x
    x = 4,279,535,021.54/53,413.70
  6. Step 6: Final answer
    x = 80,120.55

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.