Home / 66,656.56-100,021.75-39,936.89

Finding the Fourth Proportional to 66,656.56, 100,021.75 and 39,936.89

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Solution

The fourth proportional to 66,656.56, 100,021.75 and 39,936.89 is: 59,927.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,656.56 : 100,021.75 = 39,936.89 : x
  2. Step 2: Convert to fraction form
    66,656.56/100,021.75 = 39,936.89/x
  3. Step 3: Cross multiply
    66,656.56x = 100,021.75 × 39,936.89
  4. Step 4: Simplify right side
    66,656.56x = 3,994,556,927.56
  5. Step 5: Solve for x
    x = 3,994,556,927.56/66,656.56
  6. Step 6: Final answer
    x = 59,927.44

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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.