Finding the Fourth Proportional to 86,490.18, 129,734.49 and 27,325.84
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Solution
The fourth proportional to 86,490.18, 129,734.49 and 27,325.84 is: 40,988.51
Step by Step Solution
- Step 1: Write the proportion equation
86,490.18 : 129,734.49 = 27,325.84 : x - Step 2: Convert to fraction form
86,490.18/129,734.49 = 27,325.84/x - Step 3: Cross multiply
86,490.18x = 129,734.49 × 27,325.84 - Step 4: Simplify right side
86,490.18x = 3,545,103,916.22 - Step 5: Solve for x
x = 3,545,103,916.22/86,490.18 - Step 6: Final answer
x = 40,988.51
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1.5x scale
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.