Finding the Fourth Proportional to 74,466.36, 102,764.14 and 40,474.84
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Solution
The fourth proportional to 74,466.36, 102,764.14 and 40,474.84 is: 55,855.59
Step by Step Solution
- Step 1: Write the proportion equation
74,466.36 : 102,764.14 = 40,474.84 : x - Step 2: Convert to fraction form
74,466.36/102,764.14 = 40,474.84/x - Step 3: Cross multiply
74,466.36x = 102,764.14 × 40,474.84 - Step 4: Simplify right side
74,466.36x = 4,159,362,124.24 - Step 5: Solve for x
x = 4,159,362,124.24/74,466.36 - Step 6: Final answer
x = 55,855.59
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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.