Finding the Fourth Proportional to 76,699.31, 105,837.48 and 44,861.99
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Solution
The fourth proportional to 76,699.31, 105,837.48 and 44,861.99 is: 61,905.12
Step by Step Solution
- Step 1: Write the proportion equation
76,699.31 : 105,837.48 = 44,861.99 : x - Step 2: Convert to fraction form
76,699.31/105,837.48 = 44,861.99/x - Step 3: Cross multiply
76,699.31x = 105,837.48 × 44,861.99 - Step 4: Simplify right side
76,699.31x = 4,748,079,440.20 - Step 5: Solve for x
x = 4,748,079,440.20/76,699.31 - Step 6: Final answer
x = 61,905.12
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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.