Finding the Fourth Proportional to 104,622.13, 144,379.97 and 56,876.48
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Solution
The fourth proportional to 104,622.13, 144,379.97 and 56,876.48 is: 78,490.32
Step by Step Solution
- Step 1: Write the proportion equation
104,622.13 : 144,379.97 = 56,876.48 : x - Step 2: Convert to fraction form
104,622.13/144,379.97 = 56,876.48/x - Step 3: Cross multiply
104,622.13x = 144,379.97 × 56,876.48 - Step 4: Simplify right side
104,622.13x = 8,211,824,224.54 - Step 5: Solve for x
x = 8,211,824,224.54/104,622.13 - Step 6: Final answer
x = 78,490.32
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1.5x scale
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.