Finding the Fourth Proportional to 75,661.28, 104,377.47 and 48,812.42
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Solution
The fourth proportional to 75,661.28, 104,377.47 and 48,812.42 is: 67,338.50
Step by Step Solution
- Step 1: Write the proportion equation
75,661.28 : 104,377.47 = 48,812.42 : x - Step 2: Convert to fraction form
75,661.28/104,377.47 = 48,812.42/x - Step 3: Cross multiply
75,661.28x = 104,377.47 × 48,812.42 - Step 4: Simplify right side
75,661.28x = 5,094,916,904.18 - Step 5: Solve for x
x = 5,094,916,904.18/75,661.28 - Step 6: Final answer
x = 67,338.50
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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.