Finding the Fourth Proportional to 74,569.51, 102,906.12 and 40,577.99
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Solution
The fourth proportional to 74,569.51, 102,906.12 and 40,577.99 is: 55,997.73
Step by Step Solution
- Step 1: Write the proportion equation
74,569.51 : 102,906.12 = 40,577.99 : x - Step 2: Convert to fraction form
74,569.51/102,906.12 = 40,577.99/x - Step 3: Cross multiply
74,569.51x = 102,906.12 × 40,577.99 - Step 4: Simplify right side
74,569.51x = 4,175,723,508.30 - Step 5: Solve for x
x = 4,175,723,508.30/74,569.51 - Step 6: Final answer
x = 55,997.73
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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.