Finding the Fourth Proportional to 84,342.79, 126,451.69 and 51,054.99
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Solution
The fourth proportional to 84,342.79, 126,451.69 and 51,054.99 is: 76,544.66
Step by Step Solution
- Step 1: Write the proportion equation
84,342.79 : 126,451.69 = 51,054.99 : x - Step 2: Convert to fraction form
84,342.79/126,451.69 = 51,054.99/x - Step 3: Cross multiply
84,342.79x = 126,451.69 × 51,054.99 - Step 4: Simplify right side
84,342.79x = 6,455,989,768.43 - Step 5: Solve for x
x = 6,455,989,768.43/84,342.79 - Step 6: Final answer
x = 76,544.66
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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.