Finding the Fourth Proportional to 91,181.81, 125,680.26 and 60,956.09
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Solution
The fourth proportional to 91,181.81, 125,680.26 and 60,956.09 is: 84,018.70
Step by Step Solution
- Step 1: Write the proportion equation
91,181.81 : 125,680.26 = 60,956.09 : x - Step 2: Convert to fraction form
91,181.81/125,680.26 = 60,956.09/x - Step 3: Cross multiply
91,181.81x = 125,680.26 × 60,956.09 - Step 4: Simplify right side
91,181.81x = 7,660,977,239.78 - Step 5: Solve for x
x = 7,660,977,239.78/91,181.81 - Step 6: Final answer
x = 84,018.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.