Finding the Fourth Proportional to 91,170.41, 136,711.85 and 43,098.99
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Solution
The fourth proportional to 91,170.41, 136,711.85 and 43,098.99 is: 64,627.79
Step by Step Solution
- Step 1: Write the proportion equation
91,170.41 : 136,711.85 = 43,098.99 : x - Step 2: Convert to fraction form
91,170.41/136,711.85 = 43,098.99/x - Step 3: Cross multiply
91,170.41x = 136,711.85 × 43,098.99 - Step 4: Simplify right side
91,170.41x = 5,892,142,170.30 - Step 5: Solve for x
x = 5,892,142,170.30/91,170.41 - Step 6: Final answer
x = 64,627.79
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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.