Home / 40,743.41-61,115.16-11,161.50

Finding the Fourth Proportional to 40,743.41, 61,115.16 and 11,161.50

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Solution

The fourth proportional to 40,743.41, 61,115.16 and 11,161.50 is: 16,742.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,743.41 : 61,115.16 = 11,161.50 : x
  2. Step 2: Convert to fraction form
    40,743.41/61,115.16 = 11,161.50/x
  3. Step 3: Cross multiply
    40,743.41x = 61,115.16 × 11,161.50
  4. Step 4: Simplify right side
    40,743.41x = 682,136,858.34
  5. Step 5: Solve for x
    x = 682,136,858.34/40,743.41
  6. Step 6: Final answer
    x = 16,742.26

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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.