Finding the Fourth Proportional to 86,143.05, 118,868.99 and 48,416.49
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Solution
The fourth proportional to 86,143.05, 118,868.99 and 48,416.49 is: 66,810.02
Step by Step Solution
- Step 1: Write the proportion equation
86,143.05 : 118,868.99 = 48,416.49 : x - Step 2: Convert to fraction form
86,143.05/118,868.99 = 48,416.49/x - Step 3: Cross multiply
86,143.05x = 118,868.99 × 48,416.49 - Step 4: Simplify right side
86,143.05x = 5,755,219,023.56 - Step 5: Solve for x
x = 5,755,219,023.56/86,143.05 - Step 6: Final answer
x = 66,810.02
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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.