Home / 66,399.09-91,630.76-36,184.43

Finding the Fourth Proportional to 66,399.09, 91,630.76 and 36,184.43

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Solution

The fourth proportional to 66,399.09, 91,630.76 and 36,184.43 is: 49,934.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,399.09 : 91,630.76 = 36,184.43 : x
  2. Step 2: Convert to fraction form
    66,399.09/91,630.76 = 36,184.43/x
  3. Step 3: Cross multiply
    66,399.09x = 91,630.76 × 36,184.43
  4. Step 4: Simplify right side
    66,399.09x = 3,315,606,181.99
  5. Step 5: Solve for x
    x = 3,315,606,181.99/66,399.09
  6. Step 6: Final answer
    x = 49,934.51

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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.