Home / 51,413.20-77,128.94-18,152.57

Finding the Fourth Proportional to 51,413.20, 77,128.94 and 18,152.57

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Solution

The fourth proportional to 51,413.20, 77,128.94 and 18,152.57 is: 27,232.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,413.20 : 77,128.94 = 18,152.57 : x
  2. Step 2: Convert to fraction form
    51,413.20/77,128.94 = 18,152.57/x
  3. Step 3: Cross multiply
    51,413.20x = 77,128.94 × 18,152.57
  4. Step 4: Simplify right side
    51,413.20x = 1,400,088,720.58
  5. Step 5: Solve for x
    x = 1,400,088,720.58/51,413.20
  6. Step 6: Final answer
    x = 27,232.09

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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.