Finding the Fourth Proportional to 98,203.96, 135,522.39 and 55,763.38
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Solution
The fourth proportional to 98,203.96, 135,522.39 and 55,763.38 is: 76,953.99
Step by Step Solution
- Step 1: Write the proportion equation
98,203.96 : 135,522.39 = 55,763.38 : x - Step 2: Convert to fraction form
98,203.96/135,522.39 = 55,763.38/x - Step 3: Cross multiply
98,203.96x = 135,522.39 × 55,763.38 - Step 4: Simplify right side
98,203.96x = 7,557,186,532.08 - Step 5: Solve for x
x = 7,557,186,532.08/98,203.96 - Step 6: Final answer
x = 76,953.99
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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.