Home / 74,131.79-111,181.00-34,112.38

Finding the Fourth Proportional to 74,131.79, 111,181.00 and 34,112.38

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Solution

The fourth proportional to 74,131.79, 111,181.00 and 34,112.38 is: 51,160.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,131.79 : 111,181.00 = 34,112.38 : x
  2. Step 2: Convert to fraction form
    74,131.79/111,181.00 = 34,112.38/x
  3. Step 3: Cross multiply
    74,131.79x = 111,181.00 × 34,112.38
  4. Step 4: Simplify right side
    74,131.79x = 3,792,648,429.97
  5. Step 5: Solve for x
    x = 3,792,648,429.97/74,131.79
  6. Step 6: Final answer
    x = 51,160.89

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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.