Finding the Fourth Proportional to 77,137.92, 106,449.57 and 43,146.02
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Solution
The fourth proportional to 77,137.92, 106,449.57 and 43,146.02 is: 59,541.08
Step by Step Solution
- Step 1: Write the proportion equation
77,137.92 : 106,449.57 = 43,146.02 : x - Step 2: Convert to fraction form
77,137.92/106,449.57 = 43,146.02/x - Step 3: Cross multiply
77,137.92x = 106,449.57 × 43,146.02 - Step 4: Simplify right side
77,137.92x = 4,592,874,822.21 - Step 5: Solve for x
x = 4,592,874,822.21/77,137.92 - Step 6: Final answer
x = 59,541.08
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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.