Finding the Fourth Proportional to 86,043.60, 118,741.68 and 47,806.65
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Solution
The fourth proportional to 86,043.60, 118,741.68 and 47,806.65 is: 65,974.02
Step by Step Solution
- Step 1: Write the proportion equation
86,043.60 : 118,741.68 = 47,806.65 : x - Step 2: Convert to fraction form
86,043.60/118,741.68 = 47,806.65/x - Step 3: Cross multiply
86,043.60x = 118,741.68 × 47,806.65 - Step 4: Simplify right side
86,043.60x = 5,676,641,936.17 - Step 5: Solve for x
x = 5,676,641,936.17/86,043.60 - Step 6: Final answer
x = 65,974.02
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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.