Finding the Fourth Proportional to 76,231.74, 114,345.99 and 40,705.14
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Solution
The fourth proportional to 76,231.74, 114,345.99 and 40,705.14 is: 61,056.84
Step by Step Solution
- Step 1: Write the proportion equation
76,231.74 : 114,345.99 = 40,705.14 : x - Step 2: Convert to fraction form
76,231.74/114,345.99 = 40,705.14/x - Step 3: Cross multiply
76,231.74x = 114,345.99 × 40,705.14 - Step 4: Simplify right side
76,231.74x = 4,654,469,531.39 - Step 5: Solve for x
x = 4,654,469,531.39/76,231.74 - Step 6: Final answer
x = 61,056.84
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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.