Finding the Fourth Proportional to 74,570.44, 102,884.04 and 42,299.74
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Solution
The fourth proportional to 74,570.44, 102,884.04 and 42,299.74 is: 58,360.50
Step by Step Solution
- Step 1: Write the proportion equation
74,570.44 : 102,884.04 = 42,299.74 : x - Step 2: Convert to fraction form
74,570.44/102,884.04 = 42,299.74/x - Step 3: Cross multiply
74,570.44x = 102,884.04 × 42,299.74 - Step 4: Simplify right side
74,570.44x = 4,351,968,142.15 - Step 5: Solve for x
x = 4,351,968,142.15/74,570.44 - Step 6: Final answer
x = 58,360.50
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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.