Finding the Fourth Proportional to 74,047.08, 102,078.69 and 52,789.44
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Solution
The fourth proportional to 74,047.08, 102,078.69 and 52,789.44 is: 72,773.66
Step by Step Solution
- Step 1: Write the proportion equation
74,047.08 : 102,078.69 = 52,789.44 : x - Step 2: Convert to fraction form
74,047.08/102,078.69 = 52,789.44/x - Step 3: Cross multiply
74,047.08x = 102,078.69 × 52,789.44 - Step 4: Simplify right side
74,047.08x = 5,388,676,881.03 - Step 5: Solve for x
x = 5,388,676,881.03/74,047.08 - Step 6: Final answer
x = 72,773.66
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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.