Finding the Fourth Proportional to 99,530.14, 137,348.84 and 54,207.13
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Solution
The fourth proportional to 99,530.14, 137,348.84 and 54,207.13 is: 74,804.34
Step by Step Solution
- Step 1: Write the proportion equation
99,530.14 : 137,348.84 = 54,207.13 : x - Step 2: Convert to fraction form
99,530.14/137,348.84 = 54,207.13/x - Step 3: Cross multiply
99,530.14x = 137,348.84 × 54,207.13 - Step 4: Simplify right side
99,530.14x = 7,445,286,425.23 - Step 5: Solve for x
x = 7,445,286,425.23/99,530.14 - Step 6: Final answer
x = 74,804.34
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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.