Home / 66,396.09-91,618.87-40,541.63

Finding the Fourth Proportional to 66,396.09, 91,618.87 and 40,541.63

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Solution

The fourth proportional to 66,396.09, 91,618.87 and 40,541.63 is: 55,942.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,396.09 : 91,618.87 = 40,541.63 : x
  2. Step 2: Convert to fraction form
    66,396.09/91,618.87 = 40,541.63/x
  3. Step 3: Cross multiply
    66,396.09x = 91,618.87 × 40,541.63
  4. Step 4: Simplify right side
    66,396.09x = 3,714,378,328.56
  5. Step 5: Solve for x
    x = 3,714,378,328.56/66,396.09
  6. Step 6: Final answer
    x = 55,942.73

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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.