Finding the Fourth Proportional to 68,770.71, 103,191.60 and 29,317.23
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Solution
The fourth proportional to 68,770.71, 103,191.60 and 29,317.23 is: 43,990.99
Step by Step Solution
- Step 1: Write the proportion equation
68,770.71 : 103,191.60 = 29,317.23 : x - Step 2: Convert to fraction form
68,770.71/103,191.60 = 29,317.23/x - Step 3: Cross multiply
68,770.71x = 103,191.60 × 29,317.23 - Step 4: Simplify right side
68,770.71x = 3,025,291,871.27 - Step 5: Solve for x
x = 3,025,291,871.27/68,770.71 - Step 6: Final answer
x = 43,990.99
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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.