Finding the Fourth Proportional to 83,491.98, 115,214.76 and 47,192.64
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Solution
The fourth proportional to 83,491.98, 115,214.76 and 47,192.64 is: 65,123.48
Step by Step Solution
- Step 1: Write the proportion equation
83,491.98 : 115,214.76 = 47,192.64 : x - Step 2: Convert to fraction form
83,491.98/115,214.76 = 47,192.64/x - Step 3: Cross multiply
83,491.98x = 115,214.76 × 47,192.64 - Step 4: Simplify right side
83,491.98x = 5,437,288,691.37 - Step 5: Solve for x
x = 5,437,288,691.37/83,491.98 - Step 6: Final answer
x = 65,123.48
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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.