Home / 49,611.78-74,417.87-12,172.10

Finding the Fourth Proportional to 49,611.78, 74,417.87 and 12,172.10

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Solution

The fourth proportional to 49,611.78, 74,417.87 and 12,172.10 is: 18,258.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,611.78 : 74,417.87 = 12,172.10 : x
  2. Step 2: Convert to fraction form
    49,611.78/74,417.87 = 12,172.10/x
  3. Step 3: Cross multiply
    49,611.78x = 74,417.87 × 12,172.10
  4. Step 4: Simplify right side
    49,611.78x = 905,821,413.77
  5. Step 5: Solve for x
    x = 905,821,413.77/49,611.78
  6. Step 6: Final answer
    x = 18,258.19

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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.