Finding the Fourth Proportional to 68,487.20, 102,759.60 and 37,344.80
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Solution
The fourth proportional to 68,487.20, 102,759.60 and 37,344.80 is: 56,032.90
Step by Step Solution
- Step 1: Write the proportion equation
68,487.20 : 102,759.60 = 37,344.80 : x - Step 2: Convert to fraction form
68,487.20/102,759.60 = 37,344.80/x - Step 3: Cross multiply
68,487.20x = 102,759.60 × 37,344.80 - Step 4: Simplify right side
68,487.20x = 3,837,536,710.08 - Step 5: Solve for x
x = 3,837,536,710.08/68,487.20 - Step 6: Final answer
x = 56,032.90
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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.