Finding the Fourth Proportional to 98,879.24, 136,461.78 and 55,866.62
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Solution
The fourth proportional to 98,879.24, 136,461.78 and 55,866.62 is: 77,100.69
Step by Step Solution
- Step 1: Write the proportion equation
98,879.24 : 136,461.78 = 55,866.62 : x - Step 2: Convert to fraction form
98,879.24/136,461.78 = 55,866.62/x - Step 3: Cross multiply
98,879.24x = 136,461.78 × 55,866.62 - Step 4: Simplify right side
98,879.24x = 7,623,657,725.47 - Step 5: Solve for x
x = 7,623,657,725.47/98,879.24 - Step 6: Final answer
x = 77,100.69
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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.