Finding the Fourth Proportional to 68,733.87, 102,925.80 and 45,289.23
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Solution
The fourth proportional to 68,733.87, 102,925.80 and 45,289.23 is: 67,818.53
Step by Step Solution
- Step 1: Write the proportion equation
68,733.87 : 102,925.80 = 45,289.23 : x - Step 2: Convert to fraction form
68,733.87/102,925.80 = 45,289.23/x - Step 3: Cross multiply
68,733.87x = 102,925.80 × 45,289.23 - Step 4: Simplify right side
68,733.87x = 4,661,430,229.13 - Step 5: Solve for x
x = 4,661,430,229.13/68,733.87 - Step 6: Final answer
x = 67,818.53
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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.