Finding the Fourth Proportional to 86,407.75, 119,242.70 and 46,663.75
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Solution
The fourth proportional to 86,407.75, 119,242.70 and 46,663.75 is: 64,395.98
Step by Step Solution
- Step 1: Write the proportion equation
86,407.75 : 119,242.70 = 46,663.75 : x - Step 2: Convert to fraction form
86,407.75/119,242.70 = 46,663.75/x - Step 3: Cross multiply
86,407.75x = 119,242.70 × 46,663.75 - Step 4: Simplify right side
86,407.75x = 5,564,311,542.13 - Step 5: Solve for x
x = 5,564,311,542.13/86,407.75 - Step 6: Final answer
x = 64,395.98
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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.