Finding the Fourth Proportional to 71,217.83, 106,863.87 and 51,657.84
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Solution
The fourth proportional to 71,217.83, 106,863.87 and 51,657.84 is: 77,513.69
Step by Step Solution
- Step 1: Write the proportion equation
71,217.83 : 106,863.87 = 51,657.84 : x - Step 2: Convert to fraction form
71,217.83/106,863.87 = 51,657.84/x - Step 3: Cross multiply
71,217.83x = 106,863.87 × 51,657.84 - Step 4: Simplify right side
71,217.83x = 5,520,356,698.24 - Step 5: Solve for x
x = 5,520,356,698.24/71,217.83 - Step 6: Final answer
x = 77,513.69
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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.