Finding the Fourth Proportional to 77,221.23, 106,544.19 and 53,029.46
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Solution
The fourth proportional to 77,221.23, 106,544.19 and 53,029.46 is: 73,166.17
Step by Step Solution
- Step 1: Write the proportion equation
77,221.23 : 106,544.19 = 53,029.46 : x - Step 2: Convert to fraction form
77,221.23/106,544.19 = 53,029.46/x - Step 3: Cross multiply
77,221.23x = 106,544.19 × 53,029.46 - Step 4: Simplify right side
77,221.23x = 5,649,981,327.06 - Step 5: Solve for x
x = 5,649,981,327.06/77,221.23 - Step 6: Final answer
x = 73,166.17
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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.