Finding the Fourth Proportional to 90,740.09, 136,137.82 and 46,397.99
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Solution
The fourth proportional to 90,740.09, 136,137.82 and 46,397.99 is: 69,611.14
Step by Step Solution
- Step 1: Write the proportion equation
90,740.09 : 136,137.82 = 46,397.99 : x - Step 2: Convert to fraction form
90,740.09/136,137.82 = 46,397.99/x - Step 3: Cross multiply
90,740.09x = 136,137.82 × 46,397.99 - Step 4: Simplify right side
90,740.09x = 6,316,520,530.29 - Step 5: Solve for x
x = 6,316,520,530.29/90,740.09 - Step 6: Final answer
x = 69,611.14
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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.