Finding the Fourth Proportional to 80,428.79, 110,991.86 and 44,618.81
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Solution
The fourth proportional to 80,428.79, 110,991.86 and 44,618.81 is: 61,574.02
Step by Step Solution
- Step 1: Write the proportion equation
80,428.79 : 110,991.86 = 44,618.81 : x - Step 2: Convert to fraction form
80,428.79/110,991.86 = 44,618.81/x - Step 3: Cross multiply
80,428.79x = 110,991.86 × 44,618.81 - Step 4: Simplify right side
80,428.79x = 4,952,324,353.13 - Step 5: Solve for x
x = 4,952,324,353.13/80,428.79 - Step 6: Final answer
x = 61,574.02
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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.