Finding the Fourth Proportional to 77,635.49, 116,370.18 and 40,157.82
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Solution
The fourth proportional to 77,635.49, 116,370.18 and 40,157.82 is: 60,193.77
Step by Step Solution
- Step 1: Write the proportion equation
77,635.49 : 116,370.18 = 40,157.82 : x - Step 2: Convert to fraction form
77,635.49/116,370.18 = 40,157.82/x - Step 3: Cross multiply
77,635.49x = 116,370.18 × 40,157.82 - Step 4: Simplify right side
77,635.49x = 4,673,172,741.81 - Step 5: Solve for x
x = 4,673,172,741.81/77,635.49 - Step 6: Final answer
x = 60,193.77
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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.