Finding the Fourth Proportional to 105,586.92, 145,709.97 and 57,841.95
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Solution
The fourth proportional to 105,586.92, 145,709.97 and 57,841.95 is: 79,821.90
Step by Step Solution
- Step 1: Write the proportion equation
105,586.92 : 145,709.97 = 57,841.95 : x - Step 2: Convert to fraction form
105,586.92/145,709.97 = 57,841.95/x - Step 3: Cross multiply
105,586.92x = 145,709.97 × 57,841.95 - Step 4: Simplify right side
105,586.92x = 8,428,148,799.24 - Step 5: Solve for x
x = 8,428,148,799.24/105,586.92 - Step 6: Final answer
x = 79,821.90
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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.