Finding the Fourth Proportional to 74,812.68, 103,241.52 and 41,278.68
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Solution
The fourth proportional to 74,812.68, 103,241.52 and 41,278.68 is: 56,964.59
Step by Step Solution
- Step 1: Write the proportion equation
74,812.68 : 103,241.52 = 41,278.68 : x - Step 2: Convert to fraction form
74,812.68/103,241.52 = 41,278.68/x - Step 3: Cross multiply
74,812.68x = 103,241.52 × 41,278.68 - Step 4: Simplify right side
74,812.68x = 4,261,673,666.79 - Step 5: Solve for x
x = 4,261,673,666.79/74,812.68 - Step 6: Final answer
x = 56,964.59
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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.