Finding the Fourth Proportional to 83,997.68, 115,915.92 and 46,271.12
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Solution
The fourth proportional to 83,997.68, 115,915.92 and 46,271.12 is: 63,853.66
Step by Step Solution
- Step 1: Write the proportion equation
83,997.68 : 115,915.92 = 46,271.12 : x - Step 2: Convert to fraction form
83,997.68/115,915.92 = 46,271.12/x - Step 3: Cross multiply
83,997.68x = 115,915.92 × 46,271.12 - Step 4: Simplify right side
83,997.68x = 5,363,559,444.23 - Step 5: Solve for x
x = 5,363,559,444.23/83,997.68 - Step 6: Final answer
x = 63,853.66
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1.5x scale
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.