Finding the Fourth Proportional to 98,116.56, 135,366.81 and 55,090.08
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Solution
The fourth proportional to 98,116.56, 135,366.81 and 55,090.08 is: 76,005.20
Step by Step Solution
- Step 1: Write the proportion equation
98,116.56 : 135,366.81 = 55,090.08 : x - Step 2: Convert to fraction form
98,116.56/135,366.81 = 55,090.08/x - Step 3: Cross multiply
98,116.56x = 135,366.81 × 55,090.08 - Step 4: Simplify right side
98,116.56x = 7,457,368,392.24 - Step 5: Solve for x
x = 7,457,368,392.24/98,116.56 - Step 6: Final answer
x = 76,005.20
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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.