Finding the Fourth Proportional to 74,564.28, 102,897.18 and 40,573.44
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Solution
The fourth proportional to 74,564.28, 102,897.18 and 40,573.44 is: 55,990.52
Step by Step Solution
- Step 1: Write the proportion equation
74,564.28 : 102,897.18 = 40,573.44 : x - Step 2: Convert to fraction form
74,564.28/102,897.18 = 40,573.44/x - Step 3: Cross multiply
74,564.28x = 102,897.18 × 40,573.44 - Step 4: Simplify right side
74,564.28x = 4,174,892,558.90 - Step 5: Solve for x
x = 4,174,892,558.90/74,564.28 - Step 6: Final answer
x = 55,990.52
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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.