Finding the Fourth Proportional to 98,212.96, 135,534.84 and 55,772.40
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Solution
The fourth proportional to 98,212.96, 135,534.84 and 55,772.40 is: 76,966.45
Step by Step Solution
- Step 1: Write the proportion equation
98,212.96 : 135,534.84 = 55,772.40 : x - Step 2: Convert to fraction form
98,212.96/135,534.84 = 55,772.40/x - Step 3: Cross multiply
98,212.96x = 135,534.84 × 55,772.40 - Step 4: Simplify right side
98,212.96x = 7,559,103,310.42 - Step 5: Solve for x
x = 7,559,103,310.42/98,212.96 - Step 6: Final answer
x = 76,966.45
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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.