Finding the Fourth Proportional to 86,291.84, 119,054.94 and 48,558.80
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Solution
The fourth proportional to 86,291.84, 119,054.94 and 48,558.80 is: 66,995.50
Step by Step Solution
- Step 1: Write the proportion equation
86,291.84 : 119,054.94 = 48,558.80 : x - Step 2: Convert to fraction form
86,291.84/119,054.94 = 48,558.80/x - Step 3: Cross multiply
86,291.84x = 119,054.94 × 48,558.80 - Step 4: Simplify right side
86,291.84x = 5,781,165,020.47 - Step 5: Solve for x
x = 5,781,165,020.47/86,291.84 - Step 6: Final answer
x = 66,995.50
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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.