Home / 51,818.97-77,728.45-14,379.05

Finding the Fourth Proportional to 51,818.97, 77,728.45 and 14,379.05

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Solution

The fourth proportional to 51,818.97, 77,728.45 and 14,379.05 is: 21,568.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,818.97 : 77,728.45 = 14,379.05 : x
  2. Step 2: Convert to fraction form
    51,818.97/77,728.45 = 14,379.05/x
  3. Step 3: Cross multiply
    51,818.97x = 77,728.45 × 14,379.05
  4. Step 4: Simplify right side
    51,818.97x = 1,117,661,413.54
  5. Step 5: Solve for x
    x = 1,117,661,413.54/51,818.97
  6. Step 6: Final answer
    x = 21,568.58

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Similar ratio
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1.5x scale

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.