Home / 66,169.53-91,303.67-39,311.35

Finding the Fourth Proportional to 66,169.53, 91,303.67 and 39,311.35

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Solution

The fourth proportional to 66,169.53, 91,303.67 and 39,311.35 is: 54,243.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,169.53 : 91,303.67 = 39,311.35 : x
  2. Step 2: Convert to fraction form
    66,169.53/91,303.67 = 39,311.35/x
  3. Step 3: Cross multiply
    66,169.53x = 91,303.67 × 39,311.35
  4. Step 4: Simplify right side
    66,169.53x = 3,589,270,527.65
  5. Step 5: Solve for x
    x = 3,589,270,527.65/66,169.53
  6. Step 6: Final answer
    x = 54,243.55

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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.