Finding the Fourth Proportional to 75,900.62, 104,510.98 and 68,780.72
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Solution
The fourth proportional to 75,900.62, 104,510.98 and 68,780.72 is: 94,707.27
Step by Step Solution
- Step 1: Write the proportion equation
75,900.62 : 104,510.98 = 68,780.72 : x - Step 2: Convert to fraction form
75,900.62/104,510.98 = 68,780.72/x - Step 3: Cross multiply
75,900.62x = 104,510.98 × 68,780.72 - Step 4: Simplify right side
75,900.62x = 7,188,340,452.31 - Step 5: Solve for x
x = 7,188,340,452.31/75,900.62 - Step 6: Final answer
x = 94,707.27
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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.