Home / 51,413.94-70,935.09-28,749.87

Finding the Fourth Proportional to 51,413.94, 70,935.09 and 28,749.87

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Solution

The fourth proportional to 51,413.94, 70,935.09 and 28,749.87 is: 39,665.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,413.94 : 70,935.09 = 28,749.87 : x
  2. Step 2: Convert to fraction form
    51,413.94/70,935.09 = 28,749.87/x
  3. Step 3: Cross multiply
    51,413.94x = 70,935.09 × 28,749.87
  4. Step 4: Simplify right side
    51,413.94x = 2,039,374,615.94
  5. Step 5: Solve for x
    x = 2,039,374,615.94/51,413.94
  6. Step 6: Final answer
    x = 39,665.79

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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.