Home / 91,283.78-125,971.61-50,997.56

Finding the Fourth Proportional to 91,283.78, 125,971.61 and 50,997.56

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Solution

The fourth proportional to 91,283.78, 125,971.61 and 50,997.56 is: 70,376.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,283.78 : 125,971.61 = 50,997.56 : x
  2. Step 2: Convert to fraction form
    91,283.78/125,971.61 = 50,997.56/x
  3. Step 3: Cross multiply
    91,283.78x = 125,971.61 × 50,997.56
  4. Step 4: Simplify right side
    91,283.78x = 6,424,243,854.43
  5. Step 5: Solve for x
    x = 6,424,243,854.43/91,283.78
  6. Step 6: Final answer
    x = 70,376.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.