Finding the Fourth Proportional to 75,174.80, 103,691.28 and 48,351.26
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Solution
The fourth proportional to 75,174.80, 103,691.28 and 48,351.26 is: 66,692.62
Step by Step Solution
- Step 1: Write the proportion equation
75,174.80 : 103,691.28 = 48,351.26 : x - Step 2: Convert to fraction form
75,174.80/103,691.28 = 48,351.26/x - Step 3: Cross multiply
75,174.80x = 103,691.28 × 48,351.26 - Step 4: Simplify right side
75,174.80x = 5,013,604,039.01 - Step 5: Solve for x
x = 5,013,604,039.01/75,174.80 - Step 6: Final answer
x = 66,692.62
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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.