Finding the Fourth Proportional to 85,931.12, 118,576.98 and 48,198.08
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Solution
The fourth proportional to 85,931.12, 118,576.98 and 48,198.08 is: 66,508.88
Step by Step Solution
- Step 1: Write the proportion equation
85,931.12 : 118,576.98 = 48,198.08 : x - Step 2: Convert to fraction form
85,931.12/118,576.98 = 48,198.08/x - Step 3: Cross multiply
85,931.12x = 118,576.98 × 48,198.08 - Step 4: Simplify right side
85,931.12x = 5,715,182,768.20 - Step 5: Solve for x
x = 5,715,182,768.20/85,931.12 - Step 6: Final answer
x = 66,508.88
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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.