Finding the Fourth Proportional to 74,783.93, 103,203.77 and 40,792.99
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Solution
The fourth proportional to 74,783.93, 103,203.77 and 40,792.99 is: 56,295.39
Step by Step Solution
- Step 1: Write the proportion equation
74,783.93 : 103,203.77 = 40,792.99 : x - Step 2: Convert to fraction form
74,783.93/103,203.77 = 40,792.99/x - Step 3: Cross multiply
74,783.93x = 103,203.77 × 40,792.99 - Step 4: Simplify right side
74,783.93x = 4,209,990,608.83 - Step 5: Solve for x
x = 4,209,990,608.83/74,783.93 - Step 6: Final answer
x = 56,295.39
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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.