Finding the Fourth Proportional to 79,715.11, 119,490.65 and 35,362.75
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Solution
The fourth proportional to 79,715.11, 119,490.65 and 35,362.75 is: 53,007.74
Step by Step Solution
- Step 1: Write the proportion equation
79,715.11 : 119,490.65 = 35,362.75 : x - Step 2: Convert to fraction form
79,715.11/119,490.65 = 35,362.75/x - Step 3: Cross multiply
79,715.11x = 119,490.65 × 35,362.75 - Step 4: Simplify right side
79,715.11x = 4,225,517,983.29 - Step 5: Solve for x
x = 4,225,517,983.29/79,715.11 - Step 6: Final answer
x = 53,007.74
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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.