Finding the Fourth Proportional to 75,201.74, 103,915.26 and 71,557.82
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Solution
The fourth proportional to 75,201.74, 103,915.26 and 71,557.82 is: 98,880.02
Step by Step Solution
- Step 1: Write the proportion equation
75,201.74 : 103,915.26 = 71,557.82 : x - Step 2: Convert to fraction form
75,201.74/103,915.26 = 71,557.82/x - Step 3: Cross multiply
75,201.74x = 103,915.26 × 71,557.82 - Step 4: Simplify right side
75,201.74x = 7,435,949,470.33 - Step 5: Solve for x
x = 7,435,949,470.33/75,201.74 - Step 6: Final answer
x = 98,880.02
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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.