Finding the Fourth Proportional to 81,471.80, 122,207.81 and 22,307.99
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Solution
The fourth proportional to 81,471.80, 122,207.81 and 22,307.99 is: 33,462.01
Step by Step Solution
- Step 1: Write the proportion equation
81,471.80 : 122,207.81 = 22,307.99 : x - Step 2: Convert to fraction form
81,471.80/122,207.81 = 22,307.99/x - Step 3: Cross multiply
81,471.80x = 122,207.81 × 22,307.99 - Step 4: Simplify right side
81,471.80x = 2,726,209,880.82 - Step 5: Solve for x
x = 2,726,209,880.82/81,471.80 - Step 6: Final answer
x = 33,462.01
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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.