Finding the Fourth Proportional to 73,688.96, 101,690.76 and 40,154.96
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Solution
The fourth proportional to 73,688.96, 101,690.76 and 40,154.96 is: 55,413.84
Step by Step Solution
- Step 1: Write the proportion equation
73,688.96 : 101,690.76 = 40,154.96 : x - Step 2: Convert to fraction form
73,688.96/101,690.76 = 40,154.96/x - Step 3: Cross multiply
73,688.96x = 101,690.76 × 40,154.96 - Step 4: Simplify right side
73,688.96x = 4,083,387,891.72 - Step 5: Solve for x
x = 4,083,387,891.72/73,688.96 - Step 6: Final answer
x = 55,413.84
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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.