Home / 66,137.36-91,168.44-40,596.56

Finding the Fourth Proportional to 66,137.36, 91,168.44 and 40,596.56

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Solution

The fourth proportional to 66,137.36, 91,168.44 and 40,596.56 is: 55,961.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,137.36 : 91,168.44 = 40,596.56 : x
  2. Step 2: Convert to fraction form
    66,137.36/91,168.44 = 40,596.56/x
  3. Step 3: Cross multiply
    66,137.36x = 91,168.44 × 40,596.56
  4. Step 4: Simplify right side
    66,137.36x = 3,701,125,044.57
  5. Step 5: Solve for x
    x = 3,701,125,044.57/66,137.36
  6. Step 6: Final answer
    x = 55,961.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.