Finding the Fourth Proportional to 86,708.44, 129,926.58 and 51,628.96
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Solution
The fourth proportional to 86,708.44, 129,926.58 and 51,628.96 is: 77,362.41
Step by Step Solution
- Step 1: Write the proportion equation
86,708.44 : 129,926.58 = 51,628.96 : x - Step 2: Convert to fraction form
86,708.44/129,926.58 = 51,628.96/x - Step 3: Cross multiply
86,708.44x = 129,926.58 × 51,628.96 - Step 4: Simplify right side
86,708.44x = 6,707,974,201.76 - Step 5: Solve for x
x = 6,707,974,201.76/86,708.44 - Step 6: Final answer
x = 77,362.41
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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.