Finding the Fourth Proportional to 90,742.26, 125,224.44 and 50,455.62
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Solution
The fourth proportional to 90,742.26, 125,224.44 and 50,455.62 is: 69,628.82
Step by Step Solution
- Step 1: Write the proportion equation
90,742.26 : 125,224.44 = 50,455.62 : x - Step 2: Convert to fraction form
90,742.26/125,224.44 = 50,455.62/x - Step 3: Cross multiply
90,742.26x = 125,224.44 × 50,455.62 - Step 4: Simplify right side
90,742.26x = 6,318,276,759.35 - Step 5: Solve for x
x = 6,318,276,759.35/90,742.26 - Step 6: Final answer
x = 69,628.82
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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.