Finding the Fourth Proportional to 86,698.65, 130,052.48 and 27,538.95
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Solution
The fourth proportional to 86,698.65, 130,052.48 and 27,538.95 is: 41,309.86
Step by Step Solution
- Step 1: Write the proportion equation
86,698.65 : 130,052.48 = 27,538.95 : x - Step 2: Convert to fraction form
86,698.65/130,052.48 = 27,538.95/x - Step 3: Cross multiply
86,698.65x = 130,052.48 × 27,538.95 - Step 4: Simplify right side
86,698.65x = 3,581,508,744.10 - Step 5: Solve for x
x = 3,581,508,744.10/86,698.65 - Step 6: Final answer
x = 41,309.86
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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.