Home / 76,880.68-115,348.56-26,974.60

Finding the Fourth Proportional to 76,880.68, 115,348.56 and 26,974.60

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Solution

The fourth proportional to 76,880.68, 115,348.56 and 26,974.60 is: 40,471.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,880.68 : 115,348.56 = 26,974.60 : x
  2. Step 2: Convert to fraction form
    76,880.68/115,348.56 = 26,974.60/x
  3. Step 3: Cross multiply
    76,880.68x = 115,348.56 × 26,974.60
  4. Step 4: Simplify right side
    76,880.68x = 3,111,481,266.58
  5. Step 5: Solve for x
    x = 3,111,481,266.58/76,880.68
  6. Step 6: Final answer
    x = 40,471.56

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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.