Finding the Fourth Proportional to 84,663.18, 127,019.49 and 37,905.12
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Solution
The fourth proportional to 84,663.18, 127,019.49 and 37,905.12 is: 56,868.75
Step by Step Solution
- Step 1: Write the proportion equation
84,663.18 : 127,019.49 = 37,905.12 : x - Step 2: Convert to fraction form
84,663.18/127,019.49 = 37,905.12/x - Step 3: Cross multiply
84,663.18x = 127,019.49 × 37,905.12 - Step 4: Simplify right side
84,663.18x = 4,814,689,010.79 - Step 5: Solve for x
x = 4,814,689,010.79/84,663.18 - Step 6: Final answer
x = 56,868.75
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1.5x scale
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.