Finding the Fourth Proportional to 68,828.36, 103,076.37 and 39,156.23
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Solution
The fourth proportional to 68,828.36, 103,076.37 and 39,156.23 is: 58,639.82
Step by Step Solution
- Step 1: Write the proportion equation
68,828.36 : 103,076.37 = 39,156.23 : x - Step 2: Convert to fraction form
68,828.36/103,076.37 = 39,156.23/x - Step 3: Cross multiply
68,828.36x = 103,076.37 × 39,156.23 - Step 4: Simplify right side
68,828.36x = 4,036,082,308.98 - Step 5: Solve for x
x = 4,036,082,308.98/68,828.36 - Step 6: Final answer
x = 58,639.82
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.