Home / 66,379.10-91,605.39-36,166.82

Finding the Fourth Proportional to 66,379.10, 91,605.39 and 36,166.82

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Solution

The fourth proportional to 66,379.10, 91,605.39 and 36,166.82 is: 49,911.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,379.10 : 91,605.39 = 36,166.82 : x
  2. Step 2: Convert to fraction form
    66,379.10/91,605.39 = 36,166.82/x
  3. Step 3: Cross multiply
    66,379.10x = 91,605.39 × 36,166.82
  4. Step 4: Simplify right side
    66,379.10x = 3,313,075,651.16
  5. Step 5: Solve for x
    x = 3,313,075,651.16/66,379.10
  6. Step 6: Final answer
    x = 49,911.43

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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.