Finding the Fourth Proportional to 97,917.28, 135,121.52 and 55,474.96
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Solution
The fourth proportional to 97,917.28, 135,121.52 and 55,474.96 is: 76,552.99
Step by Step Solution
- Step 1: Write the proportion equation
97,917.28 : 135,121.52 = 55,474.96 : x - Step 2: Convert to fraction form
97,917.28/135,121.52 = 55,474.96/x - Step 3: Cross multiply
97,917.28x = 135,121.52 × 55,474.96 - Step 4: Simplify right side
97,917.28x = 7,495,860,917.14 - Step 5: Solve for x
x = 7,495,860,917.14/97,917.28 - Step 6: Final answer
x = 76,552.99
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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.