Finding the Fourth Proportional to 97,795.20, 134,763.84 and 69,421.44
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Solution
The fourth proportional to 97,795.20, 134,763.84 and 69,421.44 is: 95,664.20
Step by Step Solution
- Step 1: Write the proportion equation
97,795.20 : 134,763.84 = 69,421.44 : x - Step 2: Convert to fraction form
97,795.20/134,763.84 = 69,421.44/x - Step 3: Cross multiply
97,795.20x = 134,763.84 × 69,421.44 - Step 4: Simplify right side
97,795.20x = 9,355,499,832.73 - Step 5: Solve for x
x = 9,355,499,832.73/97,795.20 - Step 6: Final answer
x = 95,664.20
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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.