Finding the Fourth Proportional to 97,072.09, 145,628.92 and 54,972.07
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Solution
The fourth proportional to 97,072.09, 145,628.92 and 54,972.07 is: 82,469.87
Step by Step Solution
- Step 1: Write the proportion equation
97,072.09 : 145,628.92 = 54,972.07 : x - Step 2: Convert to fraction form
97,072.09/145,628.92 = 54,972.07/x - Step 3: Cross multiply
97,072.09x = 145,628.92 × 54,972.07 - Step 4: Simplify right side
97,072.09x = 8,005,522,888.91 - Step 5: Solve for x
x = 8,005,522,888.91/97,072.09 - Step 6: Final answer
x = 82,469.87
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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.