Finding the Fourth Proportional to 83,510.76, 115,266.60 and 51,661.08
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Solution
The fourth proportional to 83,510.76, 115,266.60 and 51,661.08 is: 71,305.75
Step by Step Solution
- Step 1: Write the proportion equation
83,510.76 : 115,266.60 = 51,661.08 : x - Step 2: Convert to fraction form
83,510.76/115,266.60 = 51,661.08/x - Step 3: Cross multiply
83,510.76x = 115,266.60 × 51,661.08 - Step 4: Simplify right side
83,510.76x = 5,954,797,043.93 - Step 5: Solve for x
x = 5,954,797,043.93/83,510.76 - Step 6: Final answer
x = 71,305.75
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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.