Finding the Fourth Proportional to 86,701.56, 119,642.36 and 48,973.38
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Solution
The fourth proportional to 86,701.56, 119,642.36 and 48,973.38 is: 67,579.99
Step by Step Solution
- Step 1: Write the proportion equation
86,701.56 : 119,642.36 = 48,973.38 : x - Step 2: Convert to fraction form
86,701.56/119,642.36 = 48,973.38/x - Step 3: Cross multiply
86,701.56x = 119,642.36 × 48,973.38 - Step 4: Simplify right side
86,701.56x = 5,859,290,760.38 - Step 5: Solve for x
x = 5,859,290,760.38/86,701.56 - Step 6: Final answer
x = 67,579.99
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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.