Home / 66,933.90-100,449.41-53,943.12

Finding the Fourth Proportional to 66,933.90, 100,449.41 and 53,943.12

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Solution

The fourth proportional to 66,933.90, 100,449.41 and 53,943.12 is: 80,953.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,933.90 : 100,449.41 = 53,943.12 : x
  2. Step 2: Convert to fraction form
    66,933.90/100,449.41 = 53,943.12/x
  3. Step 3: Cross multiply
    66,933.90x = 100,449.41 × 53,943.12
  4. Step 4: Simplify right side
    66,933.90x = 5,418,554,307.84
  5. Step 5: Solve for x
    x = 5,418,554,307.84/66,933.90
  6. Step 6: Final answer
    x = 80,953.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.