Finding the Fourth Proportional to 91,623.26, 137,451.29 and 47,238.09
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Solution
The fourth proportional to 91,623.26, 137,451.29 and 47,238.09 is: 70,865.59
Step by Step Solution
- Step 1: Write the proportion equation
91,623.26 : 137,451.29 = 47,238.09 : x - Step 2: Convert to fraction form
91,623.26/137,451.29 = 47,238.09/x - Step 3: Cross multiply
91,623.26x = 137,451.29 × 47,238.09 - Step 4: Simplify right side
91,623.26x = 6,492,936,171.45 - Step 5: Solve for x
x = 6,492,936,171.45/91,623.26 - Step 6: Final answer
x = 70,865.59
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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.