Finding the Fourth Proportional to 77,173.74, 115,765.11 and 29,789.08
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Solution
The fourth proportional to 77,173.74, 115,765.11 and 29,789.08 is: 44,685.35
Step by Step Solution
- Step 1: Write the proportion equation
77,173.74 : 115,765.11 = 29,789.08 : x - Step 2: Convert to fraction form
77,173.74/115,765.11 = 29,789.08/x - Step 3: Cross multiply
77,173.74x = 115,765.11 × 29,789.08 - Step 4: Simplify right side
77,173.74x = 3,448,535,833.59 - Step 5: Solve for x
x = 3,448,535,833.59/77,173.74 - Step 6: Final answer
x = 44,685.35
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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.