Finding the Fourth Proportional to 83,761.56, 115,471.98 and 66,615.48
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Solution
The fourth proportional to 83,761.56, 115,471.98 and 66,615.48 is: 91,834.74
Step by Step Solution
- Step 1: Write the proportion equation
83,761.56 : 115,471.98 = 66,615.48 : x - Step 2: Convert to fraction form
83,761.56/115,471.98 = 66,615.48/x - Step 3: Cross multiply
83,761.56x = 115,471.98 × 66,615.48 - Step 4: Simplify right side
83,761.56x = 7,692,221,374.25 - Step 5: Solve for x
x = 7,692,221,374.25/83,761.56 - Step 6: Final answer
x = 91,834.74
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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.