Finding the Fourth Proportional to 79,077.88, 118,622.90 and 22,918.75
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Solution
The fourth proportional to 79,077.88, 118,622.90 and 22,918.75 is: 34,379.88
Step by Step Solution
- Step 1: Write the proportion equation
79,077.88 : 118,622.90 = 22,918.75 : x - Step 2: Convert to fraction form
79,077.88/118,622.90 = 22,918.75/x - Step 3: Cross multiply
79,077.88x = 118,622.90 × 22,918.75 - Step 4: Simplify right side
79,077.88x = 2,718,687,881.67 - Step 5: Solve for x
x = 2,718,687,881.67/79,077.88 - Step 6: Final answer
x = 34,379.88
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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.