Home / 51,211.80-76,817.70-14,275.80

Finding the Fourth Proportional to 51,211.80, 76,817.70 and 14,275.80

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Solution

The fourth proportional to 51,211.80, 76,817.70 and 14,275.80 is: 21,413.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,211.80 : 76,817.70 = 14,275.80 : x
  2. Step 2: Convert to fraction form
    51,211.80/76,817.70 = 14,275.80/x
  3. Step 3: Cross multiply
    51,211.80x = 76,817.70 × 14,275.80
  4. Step 4: Simplify right side
    51,211.80x = 1,096,634,121.66
  5. Step 5: Solve for x
    x = 1,096,634,121.66/51,211.80
  6. Step 6: Final answer
    x = 21,413.70

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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.