Home / 80,673.12-120,935.88-33,929.28

Finding the Fourth Proportional to 80,673.12, 120,935.88 and 33,929.28

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Solution

The fourth proportional to 80,673.12, 120,935.88 and 33,929.28 is: 50,862.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,673.12 : 120,935.88 = 33,929.28 : x
  2. Step 2: Convert to fraction form
    80,673.12/120,935.88 = 33,929.28/x
  3. Step 3: Cross multiply
    80,673.12x = 120,935.88 × 33,929.28
  4. Step 4: Simplify right side
    80,673.12x = 4,103,267,334.57
  5. Step 5: Solve for x
    x = 4,103,267,334.57/80,673.12
  6. Step 6: Final answer
    x = 50,862.88

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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.