Finding the Fourth Proportional to 74,343.30, 102,593.80 and 40,351.78
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Solution
The fourth proportional to 74,343.30, 102,593.80 and 40,351.78 is: 55,685.48
Step by Step Solution
- Step 1: Write the proportion equation
74,343.30 : 102,593.80 = 40,351.78 : x - Step 2: Convert to fraction form
74,343.30/102,593.80 = 40,351.78/x - Step 3: Cross multiply
74,343.30x = 102,593.80 × 40,351.78 - Step 4: Simplify right side
74,343.30x = 4,139,842,446.96 - Step 5: Solve for x
x = 4,139,842,446.96/74,343.30 - Step 6: Final answer
x = 55,685.48
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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.