Home / 81,919.95-122,722.48-50,237.62

Finding the Fourth Proportional to 81,919.95, 122,722.48 and 50,237.62

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Solution

The fourth proportional to 81,919.95, 122,722.48 and 50,237.62 is: 75,259.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,919.95 : 122,722.48 = 50,237.62 : x
  2. Step 2: Convert to fraction form
    81,919.95/122,722.48 = 50,237.62/x
  3. Step 3: Cross multiply
    81,919.95x = 122,722.48 × 50,237.62
  4. Step 4: Simplify right side
    81,919.95x = 6,165,285,315.70
  5. Step 5: Solve for x
    x = 6,165,285,315.70/81,919.95
  6. Step 6: Final answer
    x = 75,259.88

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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.