Finding the Fourth Proportional to 86,681.40, 130,022.60 and 26,709.09
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Solution
The fourth proportional to 86,681.40, 130,022.60 and 26,709.09 is: 40,063.79
Step by Step Solution
- Step 1: Write the proportion equation
86,681.40 : 130,022.60 = 26,709.09 : x - Step 2: Convert to fraction form
86,681.40/130,022.60 = 26,709.09/x - Step 3: Cross multiply
86,681.40x = 130,022.60 × 26,709.09 - Step 4: Simplify right side
86,681.40x = 3,472,785,191.89 - Step 5: Solve for x
x = 3,472,785,191.89/86,681.40 - Step 6: Final answer
x = 40,063.79
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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.