Home / 80,624.72-120,947.40-26,571.29

Finding the Fourth Proportional to 80,624.72, 120,947.40 and 26,571.29

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Solution

The fourth proportional to 80,624.72, 120,947.40 and 26,571.29 is: 39,860.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,624.72 : 120,947.40 = 26,571.29 : x
  2. Step 2: Convert to fraction form
    80,624.72/120,947.40 = 26,571.29/x
  3. Step 3: Cross multiply
    80,624.72x = 120,947.40 × 26,571.29
  4. Step 4: Simplify right side
    80,624.72x = 3,213,727,835.41
  5. Step 5: Solve for x
    x = 3,213,727,835.41/80,624.72
  6. Step 6: Final answer
    x = 39,860.33

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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.