Finding the Fourth Proportional to 71,641.48, 107,491.60 and 37,898.68
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Solution
The fourth proportional to 71,641.48, 107,491.60 and 37,898.68 is: 56,863.56
Step by Step Solution
- Step 1: Write the proportion equation
71,641.48 : 107,491.60 = 37,898.68 : x - Step 2: Convert to fraction form
71,641.48/107,491.60 = 37,898.68/x - Step 3: Cross multiply
71,641.48x = 107,491.60 × 37,898.68 - Step 4: Simplify right side
71,641.48x = 4,073,789,751.09 - Step 5: Solve for x
x = 4,073,789,751.09/71,641.48 - Step 6: Final answer
x = 56,863.56
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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.