Finding the Fourth Proportional to 86,296.36, 129,444.54 and 27,137.20
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Solution
The fourth proportional to 86,296.36, 129,444.54 and 27,137.20 is: 40,705.80
Step by Step Solution
- Step 1: Write the proportion equation
86,296.36 : 129,444.54 = 27,137.20 : x - Step 2: Convert to fraction form
86,296.36/129,444.54 = 27,137.20/x - Step 3: Cross multiply
86,296.36x = 129,444.54 × 27,137.20 - Step 4: Simplify right side
86,296.36x = 3,512,762,370.89 - Step 5: Solve for x
x = 3,512,762,370.89/86,296.36 - Step 6: Final answer
x = 40,705.80
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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.