Finding the Fourth Proportional to 86,128.02, 129,136.46 and 41,125.02
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Solution
The fourth proportional to 86,128.02, 129,136.46 and 41,125.02 is: 61,660.99
Step by Step Solution
- Step 1: Write the proportion equation
86,128.02 : 129,136.46 = 41,125.02 : x - Step 2: Convert to fraction form
86,128.02/129,136.46 = 41,125.02/x - Step 3: Cross multiply
86,128.02x = 129,136.46 × 41,125.02 - Step 4: Simplify right side
86,128.02x = 5,310,739,294.60 - Step 5: Solve for x
x = 5,310,739,294.60/86,128.02 - Step 6: Final answer
x = 61,660.99
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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.