Home / 66,623.28-91,940.16-36,815.28

Finding the Fourth Proportional to 66,623.28, 91,940.16 and 36,815.28

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Solution

The fourth proportional to 66,623.28, 91,940.16 and 36,815.28 is: 50,805.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,623.28 : 91,940.16 = 36,815.28 : x
  2. Step 2: Convert to fraction form
    66,623.28/91,940.16 = 36,815.28/x
  3. Step 3: Cross multiply
    66,623.28x = 91,940.16 × 36,815.28
  4. Step 4: Simplify right side
    66,623.28x = 3,384,802,733.64
  5. Step 5: Solve for x
    x = 3,384,802,733.64/66,623.28
  6. Step 6: Final answer
    x = 50,805.10

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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.