Finding the Fourth Proportional to 66,195.10, 91,369.68 and 40,709.26
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Solution
The fourth proportional to 66,195.10, 91,369.68 and 40,709.26 is: 56,191.35
Step by Step Solution
- Step 1: Write the proportion equation
66,195.10 : 91,369.68 = 40,709.26 : x - Step 2: Convert to fraction form
66,195.10/91,369.68 = 40,709.26/x - Step 3: Cross multiply
66,195.10x = 91,369.68 × 40,709.26 - Step 4: Simplify right side
66,195.10x = 3,719,592,059.24 - Step 5: Solve for x
x = 3,719,592,059.24/66,195.10 - Step 6: Final answer
x = 56,191.35
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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.