Finding the Fourth Proportional to 75,639.38, 113,497.34 and 31,297.95
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Solution
The fourth proportional to 75,639.38, 113,497.34 and 31,297.95 is: 46,962.76
Step by Step Solution
- Step 1: Write the proportion equation
75,639.38 : 113,497.34 = 31,297.95 : x - Step 2: Convert to fraction form
75,639.38/113,497.34 = 31,297.95/x - Step 3: Cross multiply
75,639.38x = 113,497.34 × 31,297.95 - Step 4: Simplify right side
75,639.38x = 3,552,233,915.96 - Step 5: Solve for x
x = 3,552,233,915.96/75,639.38 - Step 6: Final answer
x = 46,962.76
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.