Finding the Fourth Proportional to 74,165.44, 102,347.52 and 40,631.36
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Solution
The fourth proportional to 74,165.44, 102,347.52 and 40,631.36 is: 56,070.85
Step by Step Solution
- Step 1: Write the proportion equation
74,165.44 : 102,347.52 = 40,631.36 : x - Step 2: Convert to fraction form
74,165.44/102,347.52 = 40,631.36/x - Step 3: Cross multiply
74,165.44x = 102,347.52 × 40,631.36 - Step 4: Simplify right side
74,165.44x = 4,158,518,930.23 - Step 5: Solve for x
x = 4,158,518,930.23/74,165.44 - Step 6: Final answer
x = 56,070.85
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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.