Home / 40,193.58-55,455.83-31,669.28

Finding the Fourth Proportional to 40,193.58, 55,455.83 and 31,669.28

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Solution

The fourth proportional to 40,193.58, 55,455.83 and 31,669.28 is: 43,694.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,193.58 : 55,455.83 = 31,669.28 : x
  2. Step 2: Convert to fraction form
    40,193.58/55,455.83 = 31,669.28/x
  3. Step 3: Cross multiply
    40,193.58x = 55,455.83 × 31,669.28
  4. Step 4: Simplify right side
    40,193.58x = 1,756,245,772.28
  5. Step 5: Solve for x
    x = 1,756,245,772.28/40,193.58
  6. Step 6: Final answer
    x = 43,694.68

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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.