Finding the Fourth Proportional to 86,274.23, 129,432.83 and 68,571.68
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Solution
The fourth proportional to 86,274.23, 129,432.83 and 68,571.68 is: 102,874.59
Step by Step Solution
- Step 1: Write the proportion equation
86,274.23 : 129,432.83 = 68,571.68 : x - Step 2: Convert to fraction form
86,274.23/129,432.83 = 68,571.68/x - Step 3: Cross multiply
86,274.23x = 129,432.83 × 68,571.68 - Step 4: Simplify right side
86,274.23x = 8,875,425,610.23 - Step 5: Solve for x
x = 8,875,425,610.23/86,274.23 - Step 6: Final answer
x = 102,874.59
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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.