Finding the Fourth Proportional to 78,497.67, 108,351.08 and 58,381.80
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Solution
The fourth proportional to 78,497.67, 108,351.08 and 58,381.80 is: 80,584.95
Step by Step Solution
- Step 1: Write the proportion equation
78,497.67 : 108,351.08 = 58,381.80 : x - Step 2: Convert to fraction form
78,497.67/108,351.08 = 58,381.80/x - Step 3: Cross multiply
78,497.67x = 108,351.08 × 58,381.80 - Step 4: Simplify right side
78,497.67x = 6,325,731,212.53 - Step 5: Solve for x
x = 6,325,731,212.53/78,497.67 - Step 6: Final answer
x = 80,584.95
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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.