Finding the Fourth Proportional to 91,241.74, 125,913.19 and 50,405.88
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Solution
The fourth proportional to 91,241.74, 125,913.19 and 50,405.88 is: 69,559.88
Step by Step Solution
- Step 1: Write the proportion equation
91,241.74 : 125,913.19 = 50,405.88 : x - Step 2: Convert to fraction form
91,241.74/125,913.19 = 50,405.88/x - Step 3: Cross multiply
91,241.74x = 125,913.19 × 50,405.88 - Step 4: Simplify right side
91,241.74x = 6,346,764,984.15 - Step 5: Solve for x
x = 6,346,764,984.15/91,241.74 - Step 6: Final answer
x = 69,559.88
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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.