Finding the Fourth Proportional to 81,863.98, 122,795.99 and 22,699.66
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Solution
The fourth proportional to 81,863.98, 122,795.99 and 22,699.66 is: 34,049.50
Step by Step Solution
- Step 1: Write the proportion equation
81,863.98 : 122,795.99 = 22,699.66 : x - Step 2: Convert to fraction form
81,863.98/122,795.99 = 22,699.66/x - Step 3: Cross multiply
81,863.98x = 122,795.99 × 22,699.66 - Step 4: Simplify right side
81,863.98x = 2,787,427,222.36 - Step 5: Solve for x
x = 2,787,427,222.36/81,863.98 - Step 6: Final answer
x = 34,049.50
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Double scale
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Similar ratio
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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.