Home / 80,619.54-120,947.46-27,308.51

Finding the Fourth Proportional to 80,619.54, 120,947.46 and 27,308.51

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Solution

The fourth proportional to 80,619.54, 120,947.46 and 27,308.51 is: 40,968.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,619.54 : 120,947.46 = 27,308.51 : x
  2. Step 2: Convert to fraction form
    80,619.54/120,947.46 = 27,308.51/x
  3. Step 3: Cross multiply
    80,619.54x = 120,947.46 × 27,308.51
  4. Step 4: Simplify right side
    80,619.54x = 3,302,894,920.88
  5. Step 5: Solve for x
    x = 3,302,894,920.88/80,619.54
  6. Step 6: Final answer
    x = 40,968.91

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1.5x scale

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.