Finding the Fourth Proportional to 86,260.72, 129,389.84 and 27,099.94
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Solution
The fourth proportional to 86,260.72, 129,389.84 and 27,099.94 is: 40,649.52
Step by Step Solution
- Step 1: Write the proportion equation
86,260.72 : 129,389.84 = 27,099.94 : x - Step 2: Convert to fraction form
86,260.72/129,389.84 = 27,099.94/x - Step 3: Cross multiply
86,260.72x = 129,389.84 × 27,099.94 - Step 4: Simplify right side
86,260.72x = 3,506,456,900.61 - Step 5: Solve for x
x = 3,506,456,900.61/86,260.72 - Step 6: Final answer
x = 40,649.52
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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.