Finding the Fourth Proportional to 99,289.36, 137,030.12 and 56,861.84
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Solution
The fourth proportional to 99,289.36, 137,030.12 and 56,861.84 is: 78,475.53
Step by Step Solution
- Step 1: Write the proportion equation
99,289.36 : 137,030.12 = 56,861.84 : x - Step 2: Convert to fraction form
99,289.36/137,030.12 = 56,861.84/x - Step 3: Cross multiply
99,289.36x = 137,030.12 × 56,861.84 - Step 4: Simplify right side
99,289.36x = 7,791,784,758.62 - Step 5: Solve for x
x = 7,791,784,758.62/99,289.36 - Step 6: Final answer
x = 78,475.53
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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.