Finding the Fourth Proportional to 87,234.93, 120,374.64 and 48,986.73
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Solution
The fourth proportional to 87,234.93, 120,374.64 and 48,986.73 is: 67,596.32
Step by Step Solution
- Step 1: Write the proportion equation
87,234.93 : 120,374.64 = 48,986.73 : x - Step 2: Convert to fraction form
87,234.93/120,374.64 = 48,986.73/x - Step 3: Cross multiply
87,234.93x = 120,374.64 × 48,986.73 - Step 4: Simplify right side
87,234.93x = 5,896,759,988.53 - Step 5: Solve for x
x = 5,896,759,988.53/87,234.93 - Step 6: Final answer
x = 67,596.32
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1.5x scale
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.