Home / 80,853.58-121,223.94-35,850.34

Finding the Fourth Proportional to 80,853.58, 121,223.94 and 35,850.34

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Solution

The fourth proportional to 80,853.58, 121,223.94 and 35,850.34 is: 53,750.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,853.58 : 121,223.94 = 35,850.34 : x
  2. Step 2: Convert to fraction form
    80,853.58/121,223.94 = 35,850.34/x
  3. Step 3: Cross multiply
    80,853.58x = 121,223.94 × 35,850.34
  4. Step 4: Simplify right side
    80,853.58x = 4,345,919,465.14
  5. Step 5: Solve for x
    x = 4,345,919,465.14/80,853.58
  6. Step 6: Final answer
    x = 53,750.49

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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.