Finding the Fourth Proportional to 86,929.44, 130,394.07 and 27,769.65
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Solution
The fourth proportional to 86,929.44, 130,394.07 and 27,769.65 is: 41,654.45
Step by Step Solution
- Step 1: Write the proportion equation
86,929.44 : 130,394.07 = 27,769.65 : x - Step 2: Convert to fraction form
86,929.44/130,394.07 = 27,769.65/x - Step 3: Cross multiply
86,929.44x = 130,394.07 × 27,769.65 - Step 4: Simplify right side
86,929.44x = 3,620,997,685.98 - Step 5: Solve for x
x = 3,620,997,685.98/86,929.44 - Step 6: Final answer
x = 41,654.45
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1.5x scale
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.