Home / 51,756.55-77,642.21-18,469.60

Finding the Fourth Proportional to 51,756.55, 77,642.21 and 18,469.60

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Solution

The fourth proportional to 51,756.55, 77,642.21 and 18,469.60 is: 27,707.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,756.55 : 77,642.21 = 18,469.60 : x
  2. Step 2: Convert to fraction form
    51,756.55/77,642.21 = 18,469.60/x
  3. Step 3: Cross multiply
    51,756.55x = 77,642.21 × 18,469.60
  4. Step 4: Simplify right side
    51,756.55x = 1,434,020,413.88
  5. Step 5: Solve for x
    x = 1,434,020,413.88/51,756.55
  6. Step 6: Final answer
    x = 27,707.03

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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.