Finding the Fourth Proportional to 86,914.99, 119,942.74 and 47,170.99
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Solution
The fourth proportional to 86,914.99, 119,942.74 and 47,170.99 is: 65,095.99
Step by Step Solution
- Step 1: Write the proportion equation
86,914.99 : 119,942.74 = 47,170.99 : x - Step 2: Convert to fraction form
86,914.99/119,942.74 = 47,170.99/x - Step 3: Cross multiply
86,914.99x = 119,942.74 × 47,170.99 - Step 4: Simplify right side
86,914.99x = 5,657,817,553.26 - Step 5: Solve for x
x = 5,657,817,553.26/86,914.99 - Step 6: Final answer
x = 65,095.99
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1.5x scale
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.