Finding the Fourth Proportional to 76,489.05, 105,539.99 and 44,659.29
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Solution
The fourth proportional to 76,489.05, 105,539.99 and 44,659.29 is: 61,621.12
Step by Step Solution
- Step 1: Write the proportion equation
76,489.05 : 105,539.99 = 44,659.29 : x - Step 2: Convert to fraction form
76,489.05/105,539.99 = 44,659.29/x - Step 3: Cross multiply
76,489.05x = 105,539.99 × 44,659.29 - Step 4: Simplify right side
76,489.05x = 4,713,340,796.71 - Step 5: Solve for x
x = 4,713,340,796.71/76,489.05 - Step 6: Final answer
x = 61,621.12
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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.