Finding the Fourth Proportional to 77,393.01, 106,821.41 and 47,195.00
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Solution
The fourth proportional to 77,393.01, 106,821.41 and 47,195.00 is: 65,140.71
Step by Step Solution
- Step 1: Write the proportion equation
77,393.01 : 106,821.41 = 47,195.00 : x - Step 2: Convert to fraction form
77,393.01/106,821.41 = 47,195.00/x - Step 3: Cross multiply
77,393.01x = 106,821.41 × 47,195.00 - Step 4: Simplify right side
77,393.01x = 5,041,435,674.87 - Step 5: Solve for x
x = 5,041,435,674.87/77,393.01 - Step 6: Final answer
x = 65,140.71
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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.