Finding the Fourth Proportional to 75,122.13, 103,668.53 and 41,588.13
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Solution
The fourth proportional to 75,122.13, 103,668.53 and 41,588.13 is: 57,391.61
Step by Step Solution
- Step 1: Write the proportion equation
75,122.13 : 103,668.53 = 41,588.13 : x - Step 2: Convert to fraction form
75,122.13/103,668.53 = 41,588.13/x - Step 3: Cross multiply
75,122.13x = 103,668.53 × 41,588.13 - Step 4: Simplify right side
75,122.13x = 4,311,380,302.55 - Step 5: Solve for x
x = 4,311,380,302.55/75,122.13 - Step 6: Final answer
x = 57,391.61
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.