Finding the Fourth Proportional to 71,152.80, 106,734.48 and 21,228.96
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Solution
The fourth proportional to 71,152.80, 106,734.48 and 21,228.96 is: 31,845.02
Step by Step Solution
- Step 1: Write the proportion equation
71,152.80 : 106,734.48 = 21,228.96 : x - Step 2: Convert to fraction form
71,152.80/106,734.48 = 21,228.96/x - Step 3: Cross multiply
71,152.80x = 106,734.48 × 21,228.96 - Step 4: Simplify right side
71,152.80x = 2,265,862,006.54 - Step 5: Solve for x
x = 2,265,862,006.54/71,152.80 - Step 6: Final answer
x = 31,845.02
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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.