Finding the Fourth Proportional to 84,874.42, 127,318.11 and 25,714.99
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Solution
The fourth proportional to 84,874.42, 127,318.11 and 25,714.99 is: 38,574.45
Step by Step Solution
- Step 1: Write the proportion equation
84,874.42 : 127,318.11 = 25,714.99 : x - Step 2: Convert to fraction form
84,874.42/127,318.11 = 25,714.99/x - Step 3: Cross multiply
84,874.42x = 127,318.11 × 25,714.99 - Step 4: Simplify right side
84,874.42x = 3,273,983,925.47 - Step 5: Solve for x
x = 3,273,983,925.47/84,874.42 - Step 6: Final answer
x = 38,574.45
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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.