Finding the Fourth Proportional to 98,317.99, 135,690.34 and 55,882.90
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Solution
The fourth proportional to 98,317.99, 135,690.34 and 55,882.90 is: 77,124.94
Step by Step Solution
- Step 1: Write the proportion equation
98,317.99 : 135,690.34 = 55,882.90 : x - Step 2: Convert to fraction form
98,317.99/135,690.34 = 55,882.90/x - Step 3: Cross multiply
98,317.99x = 135,690.34 × 55,882.90 - Step 4: Simplify right side
98,317.99x = 7,582,769,022.73 - Step 5: Solve for x
x = 7,582,769,022.73/98,317.99 - Step 6: Final answer
x = 77,124.94
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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.