Home / 51,413.36-77,111.46-18,125.60

Finding the Fourth Proportional to 51,413.36, 77,111.46 and 18,125.60

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Solution

The fourth proportional to 51,413.36, 77,111.46 and 18,125.60 is: 27,185.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,413.36 : 77,111.46 = 18,125.60 : x
  2. Step 2: Convert to fraction form
    51,413.36/77,111.46 = 18,125.60/x
  3. Step 3: Cross multiply
    51,413.36x = 77,111.46 × 18,125.60
  4. Step 4: Simplify right side
    51,413.36x = 1,397,691,093.82
  5. Step 5: Solve for x
    x = 1,397,691,093.82/51,413.36
  6. Step 6: Final answer
    x = 27,185.37

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1.5x scale

Why These Related Problems?

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