Finding the Fourth Proportional to 86,840.54, 119,842.09 and 48,599.79
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Solution
The fourth proportional to 86,840.54, 119,842.09 and 48,599.79 is: 67,068.90
Step by Step Solution
- Step 1: Write the proportion equation
86,840.54 : 119,842.09 = 48,599.79 : x - Step 2: Convert to fraction form
86,840.54/119,842.09 = 48,599.79/x - Step 3: Cross multiply
86,840.54x = 119,842.09 × 48,599.79 - Step 4: Simplify right side
86,840.54x = 5,824,299,836.25 - Step 5: Solve for x
x = 5,824,299,836.25/86,840.54 - Step 6: Final answer
x = 67,068.90
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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.