Home / 66,033.41-91,112.09-39,184.65

Finding the Fourth Proportional to 66,033.41, 91,112.09 and 39,184.65

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Solution

The fourth proportional to 66,033.41, 91,112.09 and 39,184.65 is: 54,066.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,033.41 : 91,112.09 = 39,184.65 : x
  2. Step 2: Convert to fraction form
    66,033.41/91,112.09 = 39,184.65/x
  3. Step 3: Cross multiply
    66,033.41x = 91,112.09 × 39,184.65
  4. Step 4: Simplify right side
    66,033.41x = 3,570,195,161.50
  5. Step 5: Solve for x
    x = 3,570,195,161.50/66,033.41
  6. Step 6: Final answer
    x = 54,066.50

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Half scale
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Double scale
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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.