Home / 89,429.94-123,413.04-49,143.51

Finding the Fourth Proportional to 89,429.94, 123,413.04 and 49,143.51

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Solution

The fourth proportional to 89,429.94, 123,413.04 and 49,143.51 is: 67,817.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,429.94 : 123,413.04 = 49,143.51 : x
  2. Step 2: Convert to fraction form
    89,429.94/123,413.04 = 49,143.51/x
  3. Step 3: Cross multiply
    89,429.94x = 123,413.04 × 49,143.51
  4. Step 4: Simplify right side
    89,429.94x = 6,064,949,965.37
  5. Step 5: Solve for x
    x = 6,064,949,965.37/89,429.94
  6. Step 6: Final answer
    x = 67,817.89

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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.