Finding the Fourth Proportional to 86,171.57, 118,916.76 and 48,446.09
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Solution
The fourth proportional to 86,171.57, 118,916.76 and 48,446.09 is: 66,855.59
Step by Step Solution
- Step 1: Write the proportion equation
86,171.57 : 118,916.76 = 48,446.09 : x - Step 2: Convert to fraction form
86,171.57/118,916.76 = 48,446.09/x - Step 3: Cross multiply
86,171.57x = 118,916.76 × 48,446.09 - Step 4: Simplify right side
86,171.57x = 5,761,051,220.65 - Step 5: Solve for x
x = 5,761,051,220.65/86,171.57 - Step 6: Final answer
x = 66,855.59
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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.