Finding the Fourth Proportional to 85,460.48, 128,092.97 and 53,454.09
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Solution
The fourth proportional to 85,460.48, 128,092.97 and 53,454.09 is: 80,120.00
Step by Step Solution
- Step 1: Write the proportion equation
85,460.48 : 128,092.97 = 53,454.09 : x - Step 2: Convert to fraction form
85,460.48/128,092.97 = 53,454.09/x - Step 3: Cross multiply
85,460.48x = 128,092.97 × 53,454.09 - Step 4: Simplify right side
85,460.48x = 6,847,093,280.38 - Step 5: Solve for x
x = 6,847,093,280.38/85,460.48 - Step 6: Final answer
x = 80,120.00
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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.