Finding the Fourth Proportional to 98,314.99, 135,686.22 and 55,879.90
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Solution
The fourth proportional to 98,314.99, 135,686.22 and 55,879.90 is: 77,120.82
Step by Step Solution
- Step 1: Write the proportion equation
98,314.99 : 135,686.22 = 55,879.90 : x - Step 2: Convert to fraction form
98,314.99/135,686.22 = 55,879.90/x - Step 3: Cross multiply
98,314.99x = 135,686.22 × 55,879.90 - Step 4: Simplify right side
98,314.99x = 7,582,132,404.98 - Step 5: Solve for x
x = 7,582,132,404.98/98,314.99 - Step 6: Final answer
x = 77,120.82
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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.