Finding the Fourth Proportional to 99,577.12, 137,414.82 and 54,255.70
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Solution
The fourth proportional to 99,577.12, 137,414.82 and 54,255.70 is: 74,871.99
Step by Step Solution
- Step 1: Write the proportion equation
99,577.12 : 137,414.82 = 54,255.70 : x - Step 2: Convert to fraction form
99,577.12/137,414.82 = 54,255.70/x - Step 3: Cross multiply
99,577.12x = 137,414.82 × 54,255.70 - Step 4: Simplify right side
99,577.12x = 7,455,537,249.47 - Step 5: Solve for x
x = 7,455,537,249.47/99,577.12 - Step 6: Final answer
x = 74,871.99
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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.