Finding the Fourth Proportional to 86,378.73, 129,572.73 and 27,219.03
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Solution
The fourth proportional to 86,378.73, 129,572.73 and 27,219.03 is: 40,830.01
Step by Step Solution
- Step 1: Write the proportion equation
86,378.73 : 129,572.73 = 27,219.03 : x - Step 2: Convert to fraction form
86,378.73/129,572.73 = 27,219.03/x - Step 3: Cross multiply
86,378.73x = 129,572.73 × 27,219.03 - Step 4: Simplify right side
86,378.73x = 3,526,844,025.05 - Step 5: Solve for x
x = 3,526,844,025.05/86,378.73 - Step 6: Final answer
x = 40,830.01
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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.