Finding the Fourth Proportional to 75,101.44, 103,639.47 and 43,269.65
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Solution
The fourth proportional to 75,101.44, 103,639.47 and 43,269.65 is: 59,711.82
Step by Step Solution
- Step 1: Write the proportion equation
75,101.44 : 103,639.47 = 43,269.65 : x - Step 2: Convert to fraction form
75,101.44/103,639.47 = 43,269.65/x - Step 3: Cross multiply
75,101.44x = 103,639.47 × 43,269.65 - Step 4: Simplify right side
75,101.44x = 4,484,443,593.09 - Step 5: Solve for x
x = 4,484,443,593.09/75,101.44 - Step 6: Final answer
x = 59,711.82
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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.