Finding the Fourth Proportional to 91,181.68, 136,836.76 and 32,021.96
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Solution
The fourth proportional to 91,181.68, 136,836.76 and 32,021.96 is: 48,055.50
Step by Step Solution
- Step 1: Write the proportion equation
91,181.68 : 136,836.76 = 32,021.96 : x - Step 2: Convert to fraction form
91,181.68/136,836.76 = 32,021.96/x - Step 3: Cross multiply
91,181.68x = 136,836.76 × 32,021.96 - Step 4: Simplify right side
91,181.68x = 4,381,781,255.25 - Step 5: Solve for x
x = 4,381,781,255.25/91,181.68 - Step 6: Final answer
x = 48,055.50
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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.