Home / 91,019.60-125,591.82-50,724.56

Finding the Fourth Proportional to 91,019.60, 125,591.82 and 50,724.56

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Solution

The fourth proportional to 91,019.60, 125,591.82 and 50,724.56 is: 69,991.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,019.60 : 125,591.82 = 50,724.56 : x
  2. Step 2: Convert to fraction form
    91,019.60/125,591.82 = 50,724.56/x
  3. Step 3: Cross multiply
    91,019.60x = 125,591.82 × 50,724.56
  4. Step 4: Simplify right side
    91,019.60x = 6,370,589,809.10
  5. Step 5: Solve for x
    x = 6,370,589,809.10/91,019.60
  6. Step 6: Final answer
    x = 69,991.41

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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.