Finding the Fourth Proportional to 98,317.96, 135,627.06 and 66,497.56
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Solution
The fourth proportional to 98,317.96, 135,627.06 and 66,497.56 is: 91,731.65
Step by Step Solution
- Step 1: Write the proportion equation
98,317.96 : 135,627.06 = 66,497.56 : x - Step 2: Convert to fraction form
98,317.96/135,627.06 = 66,497.56/x - Step 3: Cross multiply
98,317.96x = 135,627.06 × 66,497.56 - Step 4: Simplify right side
98,317.96x = 9,018,868,559.97 - Step 5: Solve for x
x = 9,018,868,559.97/98,317.96 - Step 6: Final answer
x = 91,731.65
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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.