Finding the Fourth Proportional to 91,136.34, 136,623.15 and 49,039.02
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Solution
The fourth proportional to 91,136.34, 136,623.15 and 49,039.02 is: 73,514.75
Step by Step Solution
- Step 1: Write the proportion equation
91,136.34 : 136,623.15 = 49,039.02 : x - Step 2: Convert to fraction form
91,136.34/136,623.15 = 49,039.02/x - Step 3: Cross multiply
91,136.34x = 136,623.15 × 49,039.02 - Step 4: Simplify right side
91,136.34x = 6,699,865,385.31 - Step 5: Solve for x
x = 6,699,865,385.31/91,136.34 - Step 6: Final answer
x = 73,514.75
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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.