Finding the Fourth Proportional to 79,243.80, 118,865.70 and 26,647.80
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Solution
The fourth proportional to 79,243.80, 118,865.70 and 26,647.80 is: 39,971.70
Step by Step Solution
- Step 1: Write the proportion equation
79,243.80 : 118,865.70 = 26,647.80 : x - Step 2: Convert to fraction form
79,243.80/118,865.70 = 26,647.80/x - Step 3: Cross multiply
79,243.80x = 118,865.70 × 26,647.80 - Step 4: Simplify right side
79,243.80x = 3,167,509,400.46 - Step 5: Solve for x
x = 3,167,509,400.46/79,243.80 - Step 6: Final answer
x = 39,971.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.