Finding the Fourth Proportional to 88,681.32, 122,379.66 and 48,394.26
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Solution
The fourth proportional to 88,681.32, 122,379.66 and 48,394.26 is: 66,783.77
Step by Step Solution
- Step 1: Write the proportion equation
88,681.32 : 122,379.66 = 48,394.26 : x - Step 2: Convert to fraction form
88,681.32/122,379.66 = 48,394.26/x - Step 3: Cross multiply
88,681.32x = 122,379.66 × 48,394.26 - Step 4: Simplify right side
88,681.32x = 5,922,473,084.75 - Step 5: Solve for x
x = 5,922,473,084.75/88,681.32 - Step 6: Final answer
x = 66,783.77
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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.