Finding the Fourth Proportional to 99,342.14, 137,093.49 and 56,900.63
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Solution
The fourth proportional to 99,342.14, 137,093.49 and 56,900.63 is: 78,523.63
Step by Step Solution
- Step 1: Write the proportion equation
99,342.14 : 137,093.49 = 56,900.63 : x - Step 2: Convert to fraction form
99,342.14/137,093.49 = 56,900.63/x - Step 3: Cross multiply
99,342.14x = 137,093.49 × 56,900.63 - Step 4: Simplify right side
99,342.14x = 7,800,705,264.43 - Step 5: Solve for x
x = 7,800,705,264.43/99,342.14 - Step 6: Final answer
x = 78,523.63
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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.