Finding the Fourth Proportional to 86,519.19, 129,777.99 and 27,354.88
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Solution
The fourth proportional to 86,519.19, 129,777.99 and 27,354.88 is: 41,032.07
Step by Step Solution
- Step 1: Write the proportion equation
86,519.19 : 129,777.99 = 27,354.88 : x - Step 2: Convert to fraction form
86,519.19/129,777.99 = 27,354.88/x - Step 3: Cross multiply
86,519.19x = 129,777.99 × 27,354.88 - Step 4: Simplify right side
86,519.19x = 3,550,061,343.09 - Step 5: Solve for x
x = 3,550,061,343.09/86,519.19 - Step 6: Final answer
x = 41,032.07
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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.