Home / 66,361.28-91,578.70-36,146.51

Finding the Fourth Proportional to 66,361.28, 91,578.70 and 36,146.51

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Solution

The fourth proportional to 66,361.28, 91,578.70 and 36,146.51 is: 49,882.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,361.28 : 91,578.70 = 36,146.51 : x
  2. Step 2: Convert to fraction form
    66,361.28/91,578.70 = 36,146.51/x
  3. Step 3: Cross multiply
    66,361.28x = 91,578.70 × 36,146.51
  4. Step 4: Simplify right side
    66,361.28x = 3,310,250,533.92
  5. Step 5: Solve for x
    x = 3,310,250,533.92/66,361.28
  6. Step 6: Final answer
    x = 49,882.26

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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.