Finding the Fourth Proportional to 86,617.63, 129,926.44 and 27,453.30
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Solution
The fourth proportional to 86,617.63, 129,926.44 and 27,453.30 is: 41,179.95
Step by Step Solution
- Step 1: Write the proportion equation
86,617.63 : 129,926.44 = 27,453.30 : x - Step 2: Convert to fraction form
86,617.63/129,926.44 = 27,453.30/x - Step 3: Cross multiply
86,617.63x = 129,926.44 × 27,453.30 - Step 4: Simplify right side
86,617.63x = 3,566,909,535.25 - Step 5: Solve for x
x = 3,566,909,535.25/86,617.63 - Step 6: Final answer
x = 41,179.95
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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.