Finding the Fourth Proportional to 68,235.21, 102,317.18 and 21,475.53
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Solution
The fourth proportional to 68,235.21, 102,317.18 and 21,475.53 is: 32,202.08
Step by Step Solution
- Step 1: Write the proportion equation
68,235.21 : 102,317.18 = 21,475.53 : x - Step 2: Convert to fraction form
68,235.21/102,317.18 = 21,475.53/x - Step 3: Cross multiply
68,235.21x = 102,317.18 × 21,475.53 - Step 4: Simplify right side
68,235.21x = 2,197,315,561.23 - Step 5: Solve for x
x = 2,197,315,561.23/68,235.21 - Step 6: Final answer
x = 32,202.08
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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.