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Finding the Fourth Proportional to 80,970.94, 121,493.32 and 41,555.73

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Solution

The fourth proportional to 80,970.94, 121,493.32 and 41,555.73 is: 62,352.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,970.94 : 121,493.32 = 41,555.73 : x
  2. Step 2: Convert to fraction form
    80,970.94/121,493.32 = 41,555.73/x
  3. Step 3: Cross multiply
    80,970.94x = 121,493.32 × 41,555.73
  4. Step 4: Simplify right side
    80,970.94x = 5,048,743,954.43
  5. Step 5: Solve for x
    x = 5,048,743,954.43/80,970.94
  6. Step 6: Final answer
    x = 62,352.54

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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.