Finding the Fourth Proportional to 91,308.87, 136,901.34 and 32,136.75
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Solution
The fourth proportional to 91,308.87, 136,901.34 and 32,136.75 is: 48,183.32
Step by Step Solution
- Step 1: Write the proportion equation
91,308.87 : 136,901.34 = 32,136.75 : x - Step 2: Convert to fraction form
91,308.87/136,901.34 = 32,136.75/x - Step 3: Cross multiply
91,308.87x = 136,901.34 × 32,136.75 - Step 4: Simplify right side
91,308.87x = 4,399,564,138.25 - Step 5: Solve for x
x = 4,399,564,138.25/91,308.87 - Step 6: Final answer
x = 48,183.32
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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.