Finding the Fourth Proportional to 97,976.56, 135,018.08 and 66,090.08
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Solution
The fourth proportional to 97,976.56, 135,018.08 and 66,090.08 is: 91,076.43
Step by Step Solution
- Step 1: Write the proportion equation
97,976.56 : 135,018.08 = 66,090.08 : x - Step 2: Convert to fraction form
97,976.56/135,018.08 = 66,090.08/x - Step 3: Cross multiply
97,976.56x = 135,018.08 × 66,090.08 - Step 4: Simplify right side
97,976.56x = 8,923,355,708.65 - Step 5: Solve for x
x = 8,923,355,708.65/97,976.56 - Step 6: Final answer
x = 91,076.43
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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.