Finding the Fourth Proportional to 91,425.90, 137,193.33 and 40,820.99
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Solution
The fourth proportional to 91,425.90, 137,193.33 and 40,820.99 is: 61,255.80
Step by Step Solution
- Step 1: Write the proportion equation
91,425.90 : 137,193.33 = 40,820.99 : x - Step 2: Convert to fraction form
91,425.90/137,193.33 = 40,820.99/x - Step 3: Cross multiply
91,425.90x = 137,193.33 × 40,820.99 - Step 4: Simplify right side
91,425.90x = 5,600,366,866.03 - Step 5: Solve for x
x = 5,600,366,866.03/91,425.90 - Step 6: Final answer
x = 61,255.80
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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.