Home / 66,255.03-91,410.12-40,735.17

Finding the Fourth Proportional to 66,255.03, 91,410.12 and 40,735.17

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Solution

The fourth proportional to 66,255.03, 91,410.12 and 40,735.17 is: 56,201.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,255.03 : 91,410.12 = 40,735.17 : x
  2. Step 2: Convert to fraction form
    66,255.03/91,410.12 = 40,735.17/x
  3. Step 3: Cross multiply
    66,255.03x = 91,410.12 × 40,735.17
  4. Step 4: Simplify right side
    66,255.03x = 3,723,606,777.92
  5. Step 5: Solve for x
    x = 3,723,606,777.92/66,255.03
  6. Step 6: Final answer
    x = 56,201.12

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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.