Finding the Fourth Proportional to 82,916.98, 114,428.49 and 47,113.09
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Solution
The fourth proportional to 82,916.98, 114,428.49 and 47,113.09 is: 65,017.80
Step by Step Solution
- Step 1: Write the proportion equation
82,916.98 : 114,428.49 = 47,113.09 : x - Step 2: Convert to fraction form
82,916.98/114,428.49 = 47,113.09/x - Step 3: Cross multiply
82,916.98x = 114,428.49 × 47,113.09 - Step 4: Simplify right side
82,916.98x = 5,391,079,747.93 - Step 5: Solve for x
x = 5,391,079,747.93/82,916.98 - Step 6: Final answer
x = 65,017.80
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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.