Home / 89,413.56-123,392.99-49,128.35

Finding the Fourth Proportional to 89,413.56, 123,392.99 and 49,128.35

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Solution

The fourth proportional to 89,413.56, 123,392.99 and 49,128.35 is: 67,798.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,413.56 : 123,392.99 = 49,128.35 : x
  2. Step 2: Convert to fraction form
    89,413.56/123,392.99 = 49,128.35/x
  3. Step 3: Cross multiply
    89,413.56x = 123,392.99 × 49,128.35
  4. Step 4: Simplify right side
    89,413.56x = 6,062,093,137.66
  5. Step 5: Solve for x
    x = 6,062,093,137.66/89,413.56
  6. Step 6: Final answer
    x = 67,798.36

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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.