Finding the Fourth Proportional to 91,267.60, 136,906.28 and 28,942.96
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Solution
The fourth proportional to 91,267.60, 136,906.28 and 28,942.96 is: 43,415.99
Step by Step Solution
- Step 1: Write the proportion equation
91,267.60 : 136,906.28 = 28,942.96 : x - Step 2: Convert to fraction form
91,267.60/136,906.28 = 28,942.96/x - Step 3: Cross multiply
91,267.60x = 136,906.28 × 28,942.96 - Step 4: Simplify right side
91,267.60x = 3,962,472,985.79 - Step 5: Solve for x
x = 3,962,472,985.79/91,267.60 - Step 6: Final answer
x = 43,415.99
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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.