Home / 99,964.26-137,954.39-54,645.32

Finding the Fourth Proportional to 99,964.26, 137,954.39 and 54,645.32

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Solution

The fourth proportional to 99,964.26, 137,954.39 and 54,645.32 is: 75,412.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,964.26 : 137,954.39 = 54,645.32 : x
  2. Step 2: Convert to fraction form
    99,964.26/137,954.39 = 54,645.32/x
  3. Step 3: Cross multiply
    99,964.26x = 137,954.39 × 54,645.32
  4. Step 4: Simplify right side
    99,964.26x = 7,538,560,823.96
  5. Step 5: Solve for x
    x = 7,538,560,823.96/99,964.26
  6. Step 6: Final answer
    x = 75,412.56

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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.