Finding the Fourth Proportional to 73,984.64, 102,098.40 and 40,450.88
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Solution
The fourth proportional to 73,984.64, 102,098.40 and 40,450.88 is: 55,821.99
Step by Step Solution
- Step 1: Write the proportion equation
73,984.64 : 102,098.40 = 40,450.88 : x - Step 2: Convert to fraction form
73,984.64/102,098.40 = 40,450.88/x - Step 3: Cross multiply
73,984.64x = 102,098.40 × 40,450.88 - Step 4: Simplify right side
73,984.64x = 4,129,970,126.59 - Step 5: Solve for x
x = 4,129,970,126.59/73,984.64 - Step 6: Final answer
x = 55,821.99
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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.