Finding the Fourth Proportional to 99,059.58, 136,711.65 and 56,609.88
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Solution
The fourth proportional to 99,059.58, 136,711.65 and 56,609.88 is: 78,127.02
Step by Step Solution
- Step 1: Write the proportion equation
99,059.58 : 136,711.65 = 56,609.88 : x - Step 2: Convert to fraction form
99,059.58/136,711.65 = 56,609.88/x - Step 3: Cross multiply
99,059.58x = 136,711.65 × 56,609.88 - Step 4: Simplify right side
99,059.58x = 7,739,230,101.10 - Step 5: Solve for x
x = 7,739,230,101.10/99,059.58 - Step 6: Final answer
x = 78,127.02
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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.