Finding the Fourth Proportional to 74,467.96, 102,766.48 and 40,476.53
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Solution
The fourth proportional to 74,467.96, 102,766.48 and 40,476.53 is: 55,857.99
Step by Step Solution
- Step 1: Write the proportion equation
74,467.96 : 102,766.48 = 40,476.53 : x - Step 2: Convert to fraction form
74,467.96/102,766.48 = 40,476.53/x - Step 3: Cross multiply
74,467.96x = 102,766.48 × 40,476.53 - Step 4: Simplify right side
74,467.96x = 4,159,630,510.71 - Step 5: Solve for x
x = 4,159,630,510.71/74,467.96 - Step 6: Final answer
x = 55,857.99
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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.