Finding the Fourth Proportional to 86,026.96, 118,713.20 and 47,788.99
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Solution
The fourth proportional to 86,026.96, 118,713.20 and 47,788.99 is: 65,946.57
Step by Step Solution
- Step 1: Write the proportion equation
86,026.96 : 118,713.20 = 47,788.99 : x - Step 2: Convert to fraction form
86,026.96/118,713.20 = 47,788.99/x - Step 3: Cross multiply
86,026.96x = 118,713.20 × 47,788.99 - Step 4: Simplify right side
86,026.96x = 5,673,183,391.94 - Step 5: Solve for x
x = 5,673,183,391.94/86,026.96 - Step 6: Final answer
x = 65,946.57
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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.