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Finding the Fourth Proportional to 80,148.99, 110,639.61 and 49,949.22

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Solution

The fourth proportional to 80,148.99, 110,639.61 and 49,949.22 is: 68,951.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,148.99 : 110,639.61 = 49,949.22 : x
  2. Step 2: Convert to fraction form
    80,148.99/110,639.61 = 49,949.22/x
  3. Step 3: Cross multiply
    80,148.99x = 110,639.61 × 49,949.22
  4. Step 4: Simplify right side
    80,148.99x = 5,526,362,220.60
  5. Step 5: Solve for x
    x = 5,526,362,220.60/80,148.99
  6. Step 6: Final answer
    x = 68,951.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.