Finding the Fourth Proportional to 86,791.68, 130,212.48 and 27,636.48
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Solution
The fourth proportional to 86,791.68, 130,212.48 and 27,636.48 is: 41,462.67
Step by Step Solution
- Step 1: Write the proportion equation
86,791.68 : 130,212.48 = 27,636.48 : x - Step 2: Convert to fraction form
86,791.68/130,212.48 = 27,636.48/x - Step 3: Cross multiply
86,791.68x = 130,212.48 × 27,636.48 - Step 4: Simplify right side
86,791.68x = 3,598,614,599.27 - Step 5: Solve for x
x = 3,598,614,599.27/86,791.68 - Step 6: Final answer
x = 41,462.67
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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.