Finding the Fourth Proportional to 75,221.87, 103,817.62 and 48,009.71
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Solution
The fourth proportional to 75,221.87, 103,817.62 and 48,009.71 is: 66,260.69
Step by Step Solution
- Step 1: Write the proportion equation
75,221.87 : 103,817.62 = 48,009.71 : x - Step 2: Convert to fraction form
75,221.87/103,817.62 = 48,009.71/x - Step 3: Cross multiply
75,221.87x = 103,817.62 × 48,009.71 - Step 4: Simplify right side
75,221.87x = 4,984,253,189.98 - Step 5: Solve for x
x = 4,984,253,189.98/75,221.87 - Step 6: Final answer
x = 66,260.69
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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.