Finding the Fourth Proportional to 75,557.70, 113,262.63 and 28,138.02
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Solution
The fourth proportional to 75,557.70, 113,262.63 and 28,138.02 is: 42,179.50
Step by Step Solution
- Step 1: Write the proportion equation
75,557.70 : 113,262.63 = 28,138.02 : x - Step 2: Convert to fraction form
75,557.70/113,262.63 = 28,138.02/x - Step 3: Cross multiply
75,557.70x = 113,262.63 × 28,138.02 - Step 4: Simplify right side
75,557.70x = 3,186,986,148.19 - Step 5: Solve for x
x = 3,186,986,148.19/75,557.70 - Step 6: Final answer
x = 42,179.50
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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.