Home / 85,623.33-128,380.32-41,161.62

Finding the Fourth Proportional to 85,623.33, 128,380.32 and 41,161.62

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Solution

The fourth proportional to 85,623.33, 128,380.32 and 41,161.62 is: 61,716.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,623.33 : 128,380.32 = 41,161.62 : x
  2. Step 2: Convert to fraction form
    85,623.33/128,380.32 = 41,161.62/x
  3. Step 3: Cross multiply
    85,623.33x = 128,380.32 × 41,161.62
  4. Step 4: Simplify right side
    85,623.33x = 5,284,341,947.32
  5. Step 5: Solve for x
    x = 5,284,341,947.32/85,623.33
  6. Step 6: Final answer
    x = 61,716.15

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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.