Finding the Fourth Proportional to 84,665.74, 126,972.68 and 58,538.38
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Solution
The fourth proportional to 84,665.74, 126,972.68 and 58,538.38 is: 87,789.64
Step by Step Solution
- Step 1: Write the proportion equation
84,665.74 : 126,972.68 = 58,538.38 : x - Step 2: Convert to fraction form
84,665.74/126,972.68 = 58,538.38/x - Step 3: Cross multiply
84,665.74x = 126,972.68 × 58,538.38 - Step 4: Simplify right side
84,665.74x = 7,432,774,991.46 - Step 5: Solve for x
x = 7,432,774,991.46/84,665.74 - Step 6: Final answer
x = 87,789.64
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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.