Home / 66,066.21-91,247.12-43,506.09

Finding the Fourth Proportional to 66,066.21, 91,247.12 and 43,506.09

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Solution

The fourth proportional to 66,066.21, 91,247.12 and 43,506.09 is: 60,088.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,066.21 : 91,247.12 = 43,506.09 : x
  2. Step 2: Convert to fraction form
    66,066.21/91,247.12 = 43,506.09/x
  3. Step 3: Cross multiply
    66,066.21x = 91,247.12 × 43,506.09
  4. Step 4: Simplify right side
    66,066.21x = 3,969,805,197.43
  5. Step 5: Solve for x
    x = 3,969,805,197.43/66,066.21
  6. Step 6: Final answer
    x = 60,088.28

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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.