Finding the Fourth Proportional to 86,432.12, 119,267.61 and 48,188.07
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Solution
The fourth proportional to 86,432.12, 119,267.61 and 48,188.07 is: 66,494.68
Step by Step Solution
- Step 1: Write the proportion equation
86,432.12 : 119,267.61 = 48,188.07 : x - Step 2: Convert to fraction form
86,432.12/119,267.61 = 48,188.07/x - Step 3: Cross multiply
86,432.12x = 119,267.61 × 48,188.07 - Step 4: Simplify right side
86,432.12x = 5,747,275,939.41 - Step 5: Solve for x
x = 5,747,275,939.41/86,432.12 - Step 6: Final answer
x = 66,494.68
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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.