Finding the Fourth Proportional to 86,505.07, 119,376.80 and 48,779.05
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Solution
The fourth proportional to 86,505.07, 119,376.80 and 48,779.05 is: 67,314.98
Step by Step Solution
- Step 1: Write the proportion equation
86,505.07 : 119,376.80 = 48,779.05 : x - Step 2: Convert to fraction form
86,505.07/119,376.80 = 48,779.05/x - Step 3: Cross multiply
86,505.07x = 119,376.80 × 48,779.05 - Step 4: Simplify right side
86,505.07x = 5,823,086,896.04 - Step 5: Solve for x
x = 5,823,086,896.04/86,505.07 - Step 6: Final answer
x = 67,314.98
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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.