Finding the Fourth Proportional to 75,115.70, 103,643.09 and 44,473.59
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Solution
The fourth proportional to 75,115.70, 103,643.09 and 44,473.59 is: 61,363.74
Step by Step Solution
- Step 1: Write the proportion equation
75,115.70 : 103,643.09 = 44,473.59 : x - Step 2: Convert to fraction form
75,115.70/103,643.09 = 44,473.59/x - Step 3: Cross multiply
75,115.70x = 103,643.09 × 44,473.59 - Step 4: Simplify right side
75,115.70x = 4,609,380,485.57 - Step 5: Solve for x
x = 4,609,380,485.57/75,115.70 - Step 6: Final answer
x = 61,363.74
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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.