Finding the Fourth Proportional to 73,932.74, 102,021.66 and 45,240.68
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Solution
The fourth proportional to 73,932.74, 102,021.66 and 45,240.68 is: 62,428.76
Step by Step Solution
- Step 1: Write the proportion equation
73,932.74 : 102,021.66 = 45,240.68 : x - Step 2: Convert to fraction form
73,932.74/102,021.66 = 45,240.68/x - Step 3: Cross multiply
73,932.74x = 102,021.66 × 45,240.68 - Step 4: Simplify right side
73,932.74x = 4,615,529,273.13 - Step 5: Solve for x
x = 4,615,529,273.13/73,932.74 - Step 6: Final answer
x = 62,428.76
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.