Home / 85,936.08-128,910.33-35,965.90

Finding the Fourth Proportional to 85,936.08, 128,910.33 and 35,965.90

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Solution

The fourth proportional to 85,936.08, 128,910.33 and 35,965.90 is: 53,951.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,936.08 : 128,910.33 = 35,965.90 : x
  2. Step 2: Convert to fraction form
    85,936.08/128,910.33 = 35,965.90/x
  3. Step 3: Cross multiply
    85,936.08x = 128,910.33 × 35,965.90
  4. Step 4: Simplify right side
    85,936.08x = 4,636,375,715.47
  5. Step 5: Solve for x
    x = 4,636,375,715.47/85,936.08
  6. Step 6: Final answer
    x = 53,951.45

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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.