Finding the Fourth Proportional to 86,506.44, 119,378.68 and 48,780.44
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Solution
The fourth proportional to 86,506.44, 119,378.68 and 48,780.44 is: 67,316.89
Step by Step Solution
- Step 1: Write the proportion equation
86,506.44 : 119,378.68 = 48,780.44 : x - Step 2: Convert to fraction form
86,506.44/119,378.68 = 48,780.44/x - Step 3: Cross multiply
86,506.44x = 119,378.68 × 48,780.44 - Step 4: Simplify right side
86,506.44x = 5,823,344,537.02 - Step 5: Solve for x
x = 5,823,344,537.02/86,506.44 - Step 6: Final answer
x = 67,316.89
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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.