Home / 66,215.29-91,396.85-43,571.74

Finding the Fourth Proportional to 66,215.29, 91,396.85 and 43,571.74

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Solution

The fourth proportional to 66,215.29, 91,396.85 and 43,571.74 is: 60,142.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,215.29 : 91,396.85 = 43,571.74 : x
  2. Step 2: Convert to fraction form
    66,215.29/91,396.85 = 43,571.74/x
  3. Step 3: Cross multiply
    66,215.29x = 91,396.85 × 43,571.74
  4. Step 4: Simplify right side
    66,215.29x = 3,982,319,785.02
  5. Step 5: Solve for x
    x = 3,982,319,785.02/66,215.29
  6. Step 6: Final answer
    x = 60,142.00

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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.