Finding the Fourth Proportional to 97,976.58, 135,208.53 and 55,527.18
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Solution
The fourth proportional to 97,976.58, 135,208.53 and 55,527.18 is: 76,627.99
Step by Step Solution
- Step 1: Write the proportion equation
97,976.58 : 135,208.53 = 55,527.18 : x - Step 2: Convert to fraction form
97,976.58/135,208.53 = 55,527.18/x - Step 3: Cross multiply
97,976.58x = 135,208.53 × 55,527.18 - Step 4: Simplify right side
97,976.58x = 7,507,748,382.85 - Step 5: Solve for x
x = 7,507,748,382.85/97,976.58 - Step 6: Final answer
x = 76,627.99
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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.