Home / 80,964.88-121,436.36-21,804.12

Finding the Fourth Proportional to 80,964.88, 121,436.36 and 21,804.12

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Solution

The fourth proportional to 80,964.88, 121,436.36 and 21,804.12 is: 32,703.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,964.88 : 121,436.36 = 21,804.12 : x
  2. Step 2: Convert to fraction form
    80,964.88/121,436.36 = 21,804.12/x
  3. Step 3: Cross multiply
    80,964.88x = 121,436.36 × 21,804.12
  4. Step 4: Simplify right side
    80,964.88x = 2,647,812,965.80
  5. Step 5: Solve for x
    x = 2,647,812,965.80/80,964.88
  6. Step 6: Final answer
    x = 32,703.23

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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.