Finding the Fourth Proportional to 68,735.52, 103,005.36 and 40,661.28
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Solution
The fourth proportional to 68,735.52, 103,005.36 and 40,661.28 is: 60,933.99
Step by Step Solution
- Step 1: Write the proportion equation
68,735.52 : 103,005.36 = 40,661.28 : x - Step 2: Convert to fraction form
68,735.52/103,005.36 = 40,661.28/x - Step 3: Cross multiply
68,735.52x = 103,005.36 × 40,661.28 - Step 4: Simplify right side
68,735.52x = 4,188,329,784.46 - Step 5: Solve for x
x = 4,188,329,784.46/68,735.52 - Step 6: Final answer
x = 60,933.99
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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.