Finding the Fourth Proportional to 69,960.90, 104,972.28 and 36,672.99
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Solution
The fourth proportional to 69,960.90, 104,972.28 and 36,672.99 is: 55,025.70
Step by Step Solution
- Step 1: Write the proportion equation
69,960.90 : 104,972.28 = 36,672.99 : x - Step 2: Convert to fraction form
69,960.90/104,972.28 = 36,672.99/x - Step 3: Cross multiply
69,960.90x = 104,972.28 × 36,672.99 - Step 4: Simplify right side
69,960.90x = 3,849,647,374.72 - Step 5: Solve for x
x = 3,849,647,374.72/69,960.90 - Step 6: Final answer
x = 55,025.70
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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.