Home / 85,866.14-128,775.96-35,936

Finding the Fourth Proportional to 85,866.14, 128,775.96 and 35,936

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Solution

The fourth proportional to 85,866.14, 128,775.96 and 35,936 is: 53,894.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,866.14 : 128,775.96 = 35,936 : x
  2. Step 2: Convert to fraction form
    85,866.14/128,775.96 = 35,936/x
  3. Step 3: Cross multiply
    85,866.14x = 128,775.96 × 35,936
  4. Step 4: Simplify right side
    85,866.14x = 4,627,692,898.56
  5. Step 5: Solve for x
    x = 4,627,692,898.56/85,866.14
  6. Step 6: Final answer
    x = 53,894.27

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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.