Finding the Fourth Proportional to 68,774.93, 103,141.84 and 20,741.53
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Solution
The fourth proportional to 68,774.93, 103,141.84 and 20,741.53 is: 31,106.09
Step by Step Solution
- Step 1: Write the proportion equation
68,774.93 : 103,141.84 = 20,741.53 : x - Step 2: Convert to fraction form
68,774.93/103,141.84 = 20,741.53/x - Step 3: Cross multiply
68,774.93x = 103,141.84 × 20,741.53 - Step 4: Simplify right side
68,774.93x = 2,139,318,949.20 - Step 5: Solve for x
x = 2,139,318,949.20/68,774.93 - Step 6: Final answer
x = 31,106.09
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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.