Finding the Fourth Proportional to 77,614.26, 116,418.99 and 21,457.77
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Solution
The fourth proportional to 77,614.26, 116,418.99 and 21,457.77 is: 32,185.99
Step by Step Solution
- Step 1: Write the proportion equation
77,614.26 : 116,418.99 = 21,457.77 : x - Step 2: Convert to fraction form
77,614.26/116,418.99 = 21,457.77/x - Step 3: Cross multiply
77,614.26x = 116,418.99 × 21,457.77 - Step 4: Simplify right side
77,614.26x = 2,498,091,911.05 - Step 5: Solve for x
x = 2,498,091,911.05/77,614.26 - Step 6: Final answer
x = 32,185.99
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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.