Finding the Fourth Proportional to 75,049.74, 103,653.68 and 51,134.90
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Solution
The fourth proportional to 75,049.74, 103,653.68 and 51,134.90 is: 70,624.09
Step by Step Solution
- Step 1: Write the proportion equation
75,049.74 : 103,653.68 = 51,134.90 : x - Step 2: Convert to fraction form
75,049.74/103,653.68 = 51,134.90/x - Step 3: Cross multiply
75,049.74x = 103,653.68 × 51,134.90 - Step 4: Simplify right side
75,049.74x = 5,300,319,787.49 - Step 5: Solve for x
x = 5,300,319,787.49/75,049.74 - Step 6: Final answer
x = 70,624.09
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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.