Finding the Fourth Proportional to 90,076.08, 135,115.74 and 27,747.12
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Solution
The fourth proportional to 90,076.08, 135,115.74 and 27,747.12 is: 41,621.18
Step by Step Solution
- Step 1: Write the proportion equation
90,076.08 : 135,115.74 = 27,747.12 : x - Step 2: Convert to fraction form
90,076.08/135,115.74 = 27,747.12/x - Step 3: Cross multiply
90,076.08x = 135,115.74 × 27,747.12 - Step 4: Simplify right side
90,076.08x = 3,749,072,651.67 - Step 5: Solve for x
x = 3,749,072,651.67/90,076.08 - Step 6: Final answer
x = 41,621.18
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1.5x scale
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.