Finding the Fourth Proportional to 86,140.94, 118,874.50 and 48,415.19
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Solution
The fourth proportional to 86,140.94, 118,874.50 and 48,415.19 is: 66,812.96
Step by Step Solution
- Step 1: Write the proportion equation
86,140.94 : 118,874.50 = 48,415.19 : x - Step 2: Convert to fraction form
86,140.94/118,874.50 = 48,415.19/x - Step 3: Cross multiply
86,140.94x = 118,874.50 × 48,415.19 - Step 4: Simplify right side
86,140.94x = 5,755,331,503.66 - Step 5: Solve for x
x = 5,755,331,503.66/86,140.94 - Step 6: Final answer
x = 66,812.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.