Finding the Fourth Proportional to 72,318.53, 108,437.17 and 49,548.08
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Solution
The fourth proportional to 72,318.53, 108,437.17 and 49,548.08 is: 74,294.29
Step by Step Solution
- Step 1: Write the proportion equation
72,318.53 : 108,437.17 = 49,548.08 : x - Step 2: Convert to fraction form
72,318.53/108,437.17 = 49,548.08/x - Step 3: Cross multiply
72,318.53x = 108,437.17 × 49,548.08 - Step 4: Simplify right side
72,318.53x = 5,372,853,574.13 - Step 5: Solve for x
x = 5,372,853,574.13/72,318.53 - Step 6: Final answer
x = 74,294.29
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.