Finding the Fourth Proportional to 68,436.86, 102,710.57 and 29,021.63
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Solution
The fourth proportional to 68,436.86, 102,710.57 and 29,021.63 is: 43,555.88
Step by Step Solution
- Step 1: Write the proportion equation
68,436.86 : 102,710.57 = 29,021.63 : x - Step 2: Convert to fraction form
68,436.86/102,710.57 = 29,021.63/x - Step 3: Cross multiply
68,436.86x = 102,710.57 × 29,021.63 - Step 4: Simplify right side
68,436.86x = 2,980,827,500.97 - Step 5: Solve for x
x = 2,980,827,500.97/68,436.86 - Step 6: Final answer
x = 43,555.88
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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.