Finding the Fourth Proportional to 84,722.26, 126,994.71 and 28,542.95
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Solution
The fourth proportional to 84,722.26, 126,994.71 and 28,542.95 is: 42,784.55
Step by Step Solution
- Step 1: Write the proportion equation
84,722.26 : 126,994.71 = 28,542.95 : x - Step 2: Convert to fraction form
84,722.26/126,994.71 = 28,542.95/x - Step 3: Cross multiply
84,722.26x = 126,994.71 × 28,542.95 - Step 4: Simplify right side
84,722.26x = 3,624,803,790.68 - Step 5: Solve for x
x = 3,624,803,790.68/84,722.26 - Step 6: Final answer
x = 42,784.55
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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.