Finding the Fourth Proportional to 71,270.80, 106,943.12 and 51,710.80
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Solution
The fourth proportional to 71,270.80, 106,943.12 and 51,710.80 is: 77,592.99
Step by Step Solution
- Step 1: Write the proportion equation
71,270.80 : 106,943.12 = 51,710.80 : x - Step 2: Convert to fraction form
71,270.80/106,943.12 = 51,710.80/x - Step 3: Cross multiply
71,270.80x = 106,943.12 × 51,710.80 - Step 4: Simplify right side
71,270.80x = 5,530,114,289.70 - Step 5: Solve for x
x = 5,530,114,289.70/71,270.80 - Step 6: Final answer
x = 77,592.99
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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.