Finding the Fourth Proportional to 81,406.19, 122,126.73 and 25,245.08
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Solution
The fourth proportional to 81,406.19, 122,126.73 and 25,245.08 is: 37,873.02
Step by Step Solution
- Step 1: Write the proportion equation
81,406.19 : 122,126.73 = 25,245.08 : x - Step 2: Convert to fraction form
81,406.19/122,126.73 = 25,245.08/x - Step 3: Cross multiply
81,406.19x = 122,126.73 × 25,245.08 - Step 4: Simplify right side
81,406.19x = 3,083,098,458.35 - Step 5: Solve for x
x = 3,083,098,458.35/81,406.19 - Step 6: Final answer
x = 37,873.02
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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.