Finding the Fourth Proportional to 86,122.44, 129,070.26 and 46,136.79
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Solution
The fourth proportional to 86,122.44, 129,070.26 and 46,136.79 is: 69,144.44
Step by Step Solution
- Step 1: Write the proportion equation
86,122.44 : 129,070.26 = 46,136.79 : x - Step 2: Convert to fraction form
86,122.44/129,070.26 = 46,136.79/x - Step 3: Cross multiply
86,122.44x = 129,070.26 × 46,136.79 - Step 4: Simplify right side
86,122.44x = 5,954,887,480.87 - Step 5: Solve for x
x = 5,954,887,480.87/86,122.44 - Step 6: Final answer
x = 69,144.44
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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.