Finding the Fourth Proportional to 86,812.32, 130,235.76 and 27,646.08
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Solution
The fourth proportional to 86,812.32, 130,235.76 and 27,646.08 is: 41,474.62
Step by Step Solution
- Step 1: Write the proportion equation
86,812.32 : 130,235.76 = 27,646.08 : x - Step 2: Convert to fraction form
86,812.32/130,235.76 = 27,646.08/x - Step 3: Cross multiply
86,812.32x = 130,235.76 × 27,646.08 - Step 4: Simplify right side
86,812.32x = 3,600,508,239.82 - Step 5: Solve for x
x = 3,600,508,239.82/86,812.32 - Step 6: Final answer
x = 41,474.62
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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.