Finding the Fourth Proportional to 74,033.46, 102,165.87 and 40,041.99
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Solution
The fourth proportional to 74,033.46, 102,165.87 and 40,041.99 is: 55,257.78
Step by Step Solution
- Step 1: Write the proportion equation
74,033.46 : 102,165.87 = 40,041.99 : x - Step 2: Convert to fraction form
74,033.46/102,165.87 = 40,041.99/x - Step 3: Cross multiply
74,033.46x = 102,165.87 × 40,041.99 - Step 4: Simplify right side
74,033.46x = 4,090,924,744.88 - Step 5: Solve for x
x = 4,090,924,744.88/74,033.46 - Step 6: Final answer
x = 55,257.78
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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.