Finding the Fourth Proportional to 99,644.08, 137,506.80 and 54,932.08
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Solution
The fourth proportional to 99,644.08, 137,506.80 and 54,932.08 is: 75,805.15
Step by Step Solution
- Step 1: Write the proportion equation
99,644.08 : 137,506.80 = 54,932.08 : x - Step 2: Convert to fraction form
99,644.08/137,506.80 = 54,932.08/x - Step 3: Cross multiply
99,644.08x = 137,506.80 × 54,932.08 - Step 4: Simplify right side
99,644.08x = 7,553,534,538.14 - Step 5: Solve for x
x = 7,553,534,538.14/99,644.08 - Step 6: Final answer
x = 75,805.15
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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.