Finding the Fourth Proportional to 91,493.57, 137,186.15 and 28,294.99
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Solution
The fourth proportional to 91,493.57, 137,186.15 and 28,294.99 is: 42,425.72
Step by Step Solution
- Step 1: Write the proportion equation
91,493.57 : 137,186.15 = 28,294.99 : x - Step 2: Convert to fraction form
91,493.57/137,186.15 = 28,294.99/x - Step 3: Cross multiply
91,493.57x = 137,186.15 × 28,294.99 - Step 4: Simplify right side
91,493.57x = 3,881,680,257.95 - Step 5: Solve for x
x = 3,881,680,257.95/91,493.57 - Step 6: Final answer
x = 42,425.72
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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.