Finding the Fourth Proportional to 90,330.48, 135,502.74 and 27,145.68
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Solution
The fourth proportional to 90,330.48, 135,502.74 and 27,145.68 is: 40,720.63
Step by Step Solution
- Step 1: Write the proportion equation
90,330.48 : 135,502.74 = 27,145.68 : x - Step 2: Convert to fraction form
90,330.48/135,502.74 = 27,145.68/x - Step 3: Cross multiply
90,330.48x = 135,502.74 × 27,145.68 - Step 4: Simplify right side
90,330.48x = 3,678,314,019.16 - Step 5: Solve for x
x = 3,678,314,019.16/90,330.48 - Step 6: Final answer
x = 40,720.63
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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.