Finding the Fourth Proportional to 74,548.30, 102,877.47 and 40,556.98
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Solution
The fourth proportional to 74,548.30, 102,877.47 and 40,556.98 is: 55,969.08
Step by Step Solution
- Step 1: Write the proportion equation
74,548.30 : 102,877.47 = 40,556.98 : x - Step 2: Convert to fraction form
74,548.30/102,877.47 = 40,556.98/x - Step 3: Cross multiply
74,548.30x = 102,877.47 × 40,556.98 - Step 4: Simplify right side
74,548.30x = 4,172,399,493.24 - Step 5: Solve for x
x = 4,172,399,493.24/74,548.30 - Step 6: Final answer
x = 55,969.08
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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.