Finding the Fourth Proportional to 87,796.58, 121,159.68 and 47,510.60
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Solution
The fourth proportional to 87,796.58, 121,159.68 and 47,510.60 is: 65,564.84
Step by Step Solution
- Step 1: Write the proportion equation
87,796.58 : 121,159.68 = 47,510.60 : x - Step 2: Convert to fraction form
87,796.58/121,159.68 = 47,510.60/x - Step 3: Cross multiply
87,796.58x = 121,159.68 × 47,510.60 - Step 4: Simplify right side
87,796.58x = 5,756,369,092.61 - Step 5: Solve for x
x = 5,756,369,092.61/87,796.58 - Step 6: Final answer
x = 65,564.84
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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.