Finding the Fourth Proportional to 75,433.68, 104,097.76 and 40,979.12
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Solution
The fourth proportional to 75,433.68, 104,097.76 and 40,979.12 is: 56,550.79
Step by Step Solution
- Step 1: Write the proportion equation
75,433.68 : 104,097.76 = 40,979.12 : x - Step 2: Convert to fraction form
75,433.68/104,097.76 = 40,979.12/x - Step 3: Cross multiply
75,433.68x = 104,097.76 × 40,979.12 - Step 4: Simplify right side
75,433.68x = 4,265,833,975.83 - Step 5: Solve for x
x = 4,265,833,975.83/75,433.68 - Step 6: Final answer
x = 56,550.79
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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.