Finding the Fourth Proportional to 84,486.23, 116,620.14 and 48,690.53
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Solution
The fourth proportional to 84,486.23, 116,620.14 and 48,690.53 is: 67,209.73
Step by Step Solution
- Step 1: Write the proportion equation
84,486.23 : 116,620.14 = 48,690.53 : x - Step 2: Convert to fraction form
84,486.23/116,620.14 = 48,690.53/x - Step 3: Cross multiply
84,486.23x = 116,620.14 × 48,690.53 - Step 4: Simplify right side
84,486.23x = 5,678,296,425.27 - Step 5: Solve for x
x = 5,678,296,425.27/84,486.23 - Step 6: Final answer
x = 67,209.73
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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.