Finding the Fourth Proportional to 70,598.12, 105,897.21 and 44,321.31
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Solution
The fourth proportional to 70,598.12, 105,897.21 and 44,321.31 is: 66,481.99
Step by Step Solution
- Step 1: Write the proportion equation
70,598.12 : 105,897.21 = 44,321.31 : x - Step 2: Convert to fraction form
70,598.12/105,897.21 = 44,321.31/x - Step 3: Cross multiply
70,598.12x = 105,897.21 × 44,321.31 - Step 4: Simplify right side
70,598.12x = 4,693,503,072.55 - Step 5: Solve for x
x = 4,693,503,072.55/70,598.12 - Step 6: Final answer
x = 66,481.99
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1.5x scale
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.