Home / 80,551.07-120,780.31-33,198.85

Finding the Fourth Proportional to 80,551.07, 120,780.31 and 33,198.85

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Solution

The fourth proportional to 80,551.07, 120,780.31 and 33,198.85 is: 49,779.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,551.07 : 120,780.31 = 33,198.85 : x
  2. Step 2: Convert to fraction form
    80,551.07/120,780.31 = 33,198.85/x
  3. Step 3: Cross multiply
    80,551.07x = 120,780.31 × 33,198.85
  4. Step 4: Simplify right side
    80,551.07x = 4,009,767,394.64
  5. Step 5: Solve for x
    x = 4,009,767,394.64/80,551.07
  6. Step 6: Final answer
    x = 49,779.19

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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.