Finding the Fourth Proportional to 74,890.58, 112,262.36 and 37,394.46
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Solution
The fourth proportional to 74,890.58, 112,262.36 and 37,394.46 is: 56,054.99
Step by Step Solution
- Step 1: Write the proportion equation
74,890.58 : 112,262.36 = 37,394.46 : x - Step 2: Convert to fraction form
74,890.58/112,262.36 = 37,394.46/x - Step 3: Cross multiply
74,890.58x = 112,262.36 × 37,394.46 - Step 4: Simplify right side
74,890.58x = 4,197,990,143.55 - Step 5: Solve for x
x = 4,197,990,143.55/74,890.58 - Step 6: Final answer
x = 56,054.99
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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.