Finding the Fourth Proportional to 81,739.04, 112,796.28 and 47,750.68
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Solution
The fourth proportional to 81,739.04, 112,796.28 and 47,750.68 is: 65,893.83
Step by Step Solution
- Step 1: Write the proportion equation
81,739.04 : 112,796.28 = 47,750.68 : x - Step 2: Convert to fraction form
81,739.04/112,796.28 = 47,750.68/x - Step 3: Cross multiply
81,739.04x = 112,796.28 × 47,750.68 - Step 4: Simplify right side
81,739.04x = 5,386,098,789.48 - Step 5: Solve for x
x = 5,386,098,789.48/81,739.04 - Step 6: Final answer
x = 65,893.83
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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.