Finding the Fourth Proportional to 74,331.62, 102,574.05 and 42,504.02
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Solution
The fourth proportional to 74,331.62, 102,574.05 and 42,504.02 is: 58,653.50
Step by Step Solution
- Step 1: Write the proportion equation
74,331.62 : 102,574.05 = 42,504.02 : x - Step 2: Convert to fraction form
74,331.62/102,574.05 = 42,504.02/x - Step 3: Cross multiply
74,331.62x = 102,574.05 × 42,504.02 - Step 4: Simplify right side
74,331.62x = 4,359,809,472.68 - Step 5: Solve for x
x = 4,359,809,472.68/74,331.62 - Step 6: Final answer
x = 58,653.50
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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.