Finding the Fourth Proportional to 74,344.02, 102,591.99 and 40,351.78
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Solution
The fourth proportional to 74,344.02, 102,591.99 and 40,351.78 is: 55,683.96
Step by Step Solution
- Step 1: Write the proportion equation
74,344.02 : 102,591.99 = 40,351.78 : x - Step 2: Convert to fraction form
74,344.02/102,591.99 = 40,351.78/x - Step 3: Cross multiply
74,344.02x = 102,591.99 × 40,351.78 - Step 4: Simplify right side
74,344.02x = 4,139,769,410.24 - Step 5: Solve for x
x = 4,139,769,410.24/74,344.02 - Step 6: Final answer
x = 55,683.96
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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.