Finding the Fourth Proportional to 91,604.23, 137,425.96 and 28,422.99
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Solution
The fourth proportional to 91,604.23, 137,425.96 and 28,422.99 is: 42,640.57
Step by Step Solution
- Step 1: Write the proportion equation
91,604.23 : 137,425.96 = 28,422.99 : x - Step 2: Convert to fraction form
91,604.23/137,425.96 = 28,422.99/x - Step 3: Cross multiply
91,604.23x = 137,425.96 × 28,422.99 - Step 4: Simplify right side
91,604.23x = 3,906,056,686.82 - Step 5: Solve for x
x = 3,906,056,686.82/91,604.23 - Step 6: Final answer
x = 42,640.57
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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.