Finding the Fourth Proportional to 91,128.92, 136,677.62 and 41,197.41
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Solution
The fourth proportional to 91,128.92, 136,677.62 and 41,197.41 is: 61,788.99
Step by Step Solution
- Step 1: Write the proportion equation
91,128.92 : 136,677.62 = 41,197.41 : x - Step 2: Convert to fraction form
91,128.92/136,677.62 = 41,197.41/x - Step 3: Cross multiply
91,128.92x = 136,677.62 × 41,197.41 - Step 4: Simplify right side
91,128.92x = 5,630,763,742.98 - Step 5: Solve for x
x = 5,630,763,742.98/91,128.92 - Step 6: Final answer
x = 61,788.99
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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.