Home / 66,401.43-91,630.44-38,105.25

Finding the Fourth Proportional to 66,401.43, 91,630.44 and 38,105.25

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Solution

The fourth proportional to 66,401.43, 91,630.44 and 38,105.25 is: 52,583.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,401.43 : 91,630.44 = 38,105.25 : x
  2. Step 2: Convert to fraction form
    66,401.43/91,630.44 = 38,105.25/x
  3. Step 3: Cross multiply
    66,401.43x = 91,630.44 × 38,105.25
  4. Step 4: Simplify right side
    66,401.43x = 3,491,600,823.81
  5. Step 5: Solve for x
    x = 3,491,600,823.81/66,401.43
  6. Step 6: Final answer
    x = 52,583.22

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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.