Finding the Fourth Proportional to 91,246.44, 136,869.99 and 28,066.14
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Solution
The fourth proportional to 91,246.44, 136,869.99 and 28,066.14 is: 42,099.31
Step by Step Solution
- Step 1: Write the proportion equation
91,246.44 : 136,869.99 = 28,066.14 : x - Step 2: Convert to fraction form
91,246.44/136,869.99 = 28,066.14/x - Step 3: Cross multiply
91,246.44x = 136,869.99 × 28,066.14 - Step 4: Simplify right side
91,246.44x = 3,841,412,301.14 - Step 5: Solve for x
x = 3,841,412,301.14/91,246.44 - Step 6: Final answer
x = 42,099.31
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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.