Finding the Fourth Proportional to 86,093.80, 129,137.11 and 29,946.62
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Solution
The fourth proportional to 86,093.80, 129,137.11 and 29,946.62 is: 44,918.68
Step by Step Solution
- Step 1: Write the proportion equation
86,093.80 : 129,137.11 = 29,946.62 : x - Step 2: Convert to fraction form
86,093.80/129,137.11 = 29,946.62/x - Step 3: Cross multiply
86,093.80x = 129,137.11 × 29,946.62 - Step 4: Simplify right side
86,093.80x = 3,867,219,961.07 - Step 5: Solve for x
x = 3,867,219,961.07/86,093.80 - Step 6: Final answer
x = 44,918.68
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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.