Finding the Fourth Proportional to 99,693.05, 137,575.40 and 57,251.88
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Solution
The fourth proportional to 99,693.05, 137,575.40 and 57,251.88 is: 79,007.02
Step by Step Solution
- Step 1: Write the proportion equation
99,693.05 : 137,575.40 = 57,251.88 : x - Step 2: Convert to fraction form
99,693.05/137,575.40 = 57,251.88/x - Step 3: Cross multiply
99,693.05x = 137,575.40 × 57,251.88 - Step 4: Simplify right side
99,693.05x = 7,876,450,005.49 - Step 5: Solve for x
x = 7,876,450,005.49/99,693.05 - Step 6: Final answer
x = 79,007.02
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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.