Finding the Fourth Proportional to 87,052.17, 130,578.30 and 57,463.09
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Solution
The fourth proportional to 87,052.17, 130,578.30 and 57,463.09 is: 86,194.67
Step by Step Solution
- Step 1: Write the proportion equation
87,052.17 : 130,578.30 = 57,463.09 : x - Step 2: Convert to fraction form
87,052.17/130,578.30 = 57,463.09/x - Step 3: Cross multiply
87,052.17x = 130,578.30 × 57,463.09 - Step 4: Simplify right side
87,052.17x = 7,503,433,228.49 - Step 5: Solve for x
x = 7,503,433,228.49/87,052.17 - Step 6: Final answer
x = 86,194.67
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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.