Finding the Fourth Proportional to 86,743.63, 130,115.45 and 27,579.30
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Solution
The fourth proportional to 86,743.63, 130,115.45 and 27,579.30 is: 41,368.95
Step by Step Solution
- Step 1: Write the proportion equation
86,743.63 : 130,115.45 = 27,579.30 : x - Step 2: Convert to fraction form
86,743.63/130,115.45 = 27,579.30/x - Step 3: Cross multiply
86,743.63x = 130,115.45 × 27,579.30 - Step 4: Simplify right side
86,743.63x = 3,588,493,030.19 - Step 5: Solve for x
x = 3,588,493,030.19/86,743.63 - Step 6: Final answer
x = 41,368.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.