Finding the Fourth Proportional to 75,815.84, 113,743.20 and 29,072.36
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Solution
The fourth proportional to 75,815.84, 113,743.20 and 29,072.36 is: 43,615.99
Step by Step Solution
- Step 1: Write the proportion equation
75,815.84 : 113,743.20 = 29,072.36 : x - Step 2: Convert to fraction form
75,815.84/113,743.20 = 29,072.36/x - Step 3: Cross multiply
75,815.84x = 113,743.20 × 29,072.36 - Step 4: Simplify right side
75,815.84x = 3,306,783,257.95 - Step 5: Solve for x
x = 3,306,783,257.95/75,815.84 - Step 6: Final answer
x = 43,615.99
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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.