Finding the Fourth Proportional to 74,347.63, 102,586.49 and 42,082.09
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Solution
The fourth proportional to 74,347.63, 102,586.49 and 42,082.09 is: 58,065.79
Step by Step Solution
- Step 1: Write the proportion equation
74,347.63 : 102,586.49 = 42,082.09 : x - Step 2: Convert to fraction form
74,347.63/102,586.49 = 42,082.09/x - Step 3: Cross multiply
74,347.63x = 102,586.49 × 42,082.09 - Step 4: Simplify right side
74,347.63x = 4,317,053,904.96 - Step 5: Solve for x
x = 4,317,053,904.96/74,347.63 - Step 6: Final answer
x = 58,065.79
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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.