Finding the Fourth Proportional to 90,236.44, 135,307.93 and 48,105.20
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Solution
The fourth proportional to 90,236.44, 135,307.93 and 48,105.20 is: 72,132.89
Step by Step Solution
- Step 1: Write the proportion equation
90,236.44 : 135,307.93 = 48,105.20 : x - Step 2: Convert to fraction form
90,236.44/135,307.93 = 48,105.20/x - Step 3: Cross multiply
90,236.44x = 135,307.93 × 48,105.20 - Step 4: Simplify right side
90,236.44x = 6,509,015,034.24 - Step 5: Solve for x
x = 6,509,015,034.24/90,236.44 - Step 6: Final answer
x = 72,132.89
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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.