Finding the Fourth Proportional to 91,288.14, 136,819.17 and 51,725.31
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Solution
The fourth proportional to 91,288.14, 136,819.17 and 51,725.31 is: 77,523.91
Step by Step Solution
- Step 1: Write the proportion equation
91,288.14 : 136,819.17 = 51,725.31 : x - Step 2: Convert to fraction form
91,288.14/136,819.17 = 51,725.31/x - Step 3: Cross multiply
91,288.14x = 136,819.17 × 51,725.31 - Step 4: Simplify right side
91,288.14x = 7,077,013,982.19 - Step 5: Solve for x
x = 7,077,013,982.19/91,288.14 - Step 6: Final answer
x = 77,523.91
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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.