Finding the Fourth Proportional to 83,984.21, 115,898.20 and 46,258.46
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Solution
The fourth proportional to 83,984.21, 115,898.20 and 46,258.46 is: 63,836.67
Step by Step Solution
- Step 1: Write the proportion equation
83,984.21 : 115,898.20 = 46,258.46 : x - Step 2: Convert to fraction form
83,984.21/115,898.20 = 46,258.46/x - Step 3: Cross multiply
83,984.21x = 115,898.20 × 46,258.46 - Step 4: Simplify right side
83,984.21x = 5,361,271,988.25 - Step 5: Solve for x
x = 5,361,271,988.25/83,984.21 - Step 6: Final answer
x = 63,836.67
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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.