Finding the Fourth Proportional to 90,804.11, 125,306.19 and 50,516.53
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Solution
The fourth proportional to 90,804.11, 125,306.19 and 50,516.53 is: 69,710.87
Step by Step Solution
- Step 1: Write the proportion equation
90,804.11 : 125,306.19 = 50,516.53 : x - Step 2: Convert to fraction form
90,804.11/125,306.19 = 50,516.53/x - Step 3: Cross multiply
90,804.11x = 125,306.19 × 50,516.53 - Step 4: Simplify right side
90,804.11x = 6,330,033,593.06 - Step 5: Solve for x
x = 6,330,033,593.06/90,804.11 - Step 6: Final answer
x = 69,710.87
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.