Home / 66,269.05-91,416.43-39,392.44

Finding the Fourth Proportional to 66,269.05, 91,416.43 and 39,392.44

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Solution

The fourth proportional to 66,269.05, 91,416.43 and 39,392.44 is: 54,340.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,269.05 : 91,416.43 = 39,392.44 : x
  2. Step 2: Convert to fraction form
    66,269.05/91,416.43 = 39,392.44/x
  3. Step 3: Cross multiply
    66,269.05x = 91,416.43 × 39,392.44
  4. Step 4: Simplify right side
    66,269.05x = 3,601,116,054.49
  5. Step 5: Solve for x
    x = 3,601,116,054.49/66,269.05
  6. Step 6: Final answer
    x = 54,340.85

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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.