Home / 40,791.74-61,159.91-20,751.98

Finding the Fourth Proportional to 40,791.74, 61,159.91 and 20,751.98

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Solution

The fourth proportional to 40,791.74, 61,159.91 and 20,751.98 is: 31,113.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,791.74 : 61,159.91 = 20,751.98 : x
  2. Step 2: Convert to fraction form
    40,791.74/61,159.91 = 20,751.98/x
  3. Step 3: Cross multiply
    40,791.74x = 61,159.91 × 20,751.98
  4. Step 4: Simplify right side
    40,791.74x = 1,269,188,975.20
  5. Step 5: Solve for x
    x = 1,269,188,975.20/40,791.74
  6. Step 6: Final answer
    x = 31,113.88

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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.