Home / 85,975.05-128,984.94-32,668.05

Finding the Fourth Proportional to 85,975.05, 128,984.94 and 32,668.05

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Solution

The fourth proportional to 85,975.05, 128,984.94 and 32,668.05 is: 49,010.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,975.05 : 128,984.94 = 32,668.05 : x
  2. Step 2: Convert to fraction form
    85,975.05/128,984.94 = 32,668.05/x
  3. Step 3: Cross multiply
    85,975.05x = 128,984.94 × 32,668.05
  4. Step 4: Simplify right side
    85,975.05x = 4,213,686,469.17
  5. Step 5: Solve for x
    x = 4,213,686,469.17/85,975.05
  6. Step 6: Final answer
    x = 49,010.57

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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.