Finding the Fourth Proportional to 74,466.25, 102,764.11 and 40,474.81
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Solution
The fourth proportional to 74,466.25, 102,764.11 and 40,474.81 is: 55,855.61
Step by Step Solution
- Step 1: Write the proportion equation
74,466.25 : 102,764.11 = 40,474.81 : x - Step 2: Convert to fraction form
74,466.25/102,764.11 = 40,474.81/x - Step 3: Cross multiply
74,466.25x = 102,764.11 × 40,474.81 - Step 4: Simplify right side
74,466.25x = 4,159,357,624.70 - Step 5: Solve for x
x = 4,159,357,624.70/74,466.25 - Step 6: Final answer
x = 55,855.61
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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.