Finding the Fourth Proportional to 91,597.36, 137,404.74 and 28,418.17
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Solution
The fourth proportional to 91,597.36, 137,404.74 and 28,418.17 is: 42,629.95
Step by Step Solution
- Step 1: Write the proportion equation
91,597.36 : 137,404.74 = 28,418.17 : x - Step 2: Convert to fraction form
91,597.36/137,404.74 = 28,418.17/x - Step 3: Cross multiply
91,597.36x = 137,404.74 × 28,418.17 - Step 4: Simplify right side
91,597.36x = 3,904,791,260.13 - Step 5: Solve for x
x = 3,904,791,260.13/91,597.36 - Step 6: Final answer
x = 42,629.95
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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.