Finding the Fourth Proportional to 91,957.26, 137,376.87 and 58,408.68
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Solution
The fourth proportional to 91,957.26, 137,376.87 and 58,408.68 is: 87,257.95
Step by Step Solution
- Step 1: Write the proportion equation
91,957.26 : 137,376.87 = 58,408.68 : x - Step 2: Convert to fraction form
91,957.26/137,376.87 = 58,408.68/x - Step 3: Cross multiply
91,957.26x = 137,376.87 × 58,408.68 - Step 4: Simplify right side
91,957.26x = 8,024,001,639.23 - Step 5: Solve for x
x = 8,024,001,639.23/91,957.26 - Step 6: Final answer
x = 87,257.95
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.