Finding the Fourth Proportional to 71,236.38, 106,815.07 and 29,145.99
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Solution
The fourth proportional to 71,236.38, 106,815.07 and 29,145.99 is: 43,702.82
Step by Step Solution
- Step 1: Write the proportion equation
71,236.38 : 106,815.07 = 29,145.99 : x - Step 2: Convert to fraction form
71,236.38/106,815.07 = 29,145.99/x - Step 3: Cross multiply
71,236.38x = 106,815.07 × 29,145.99 - Step 4: Simplify right side
71,236.38x = 3,113,230,962.07 - Step 5: Solve for x
x = 3,113,230,962.07/71,236.38 - Step 6: Final answer
x = 43,702.82
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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.