Finding the Fourth Proportional to 87,263.60, 120,416.67 and 49,021.07
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Solution
The fourth proportional to 87,263.60, 120,416.67 and 49,021.07 is: 67,645.09
Step by Step Solution
- Step 1: Write the proportion equation
87,263.60 : 120,416.67 = 49,021.07 : x - Step 2: Convert to fraction form
87,263.60/120,416.67 = 49,021.07/x - Step 3: Cross multiply
87,263.60x = 120,416.67 × 49,021.07 - Step 4: Simplify right side
87,263.60x = 5,902,954,009.24 - Step 5: Solve for x
x = 5,902,954,009.24/87,263.60 - Step 6: Final answer
x = 67,645.09
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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.