Finding the Fourth Proportional to 83,690.01, 115,493.99 and 45,963.99
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Solution
The fourth proportional to 83,690.01, 115,493.99 and 45,963.99 is: 63,431.28
Step by Step Solution
- Step 1: Write the proportion equation
83,690.01 : 115,493.99 = 45,963.99 : x - Step 2: Convert to fraction form
83,690.01/115,493.99 = 45,963.99/x - Step 3: Cross multiply
83,690.01x = 115,493.99 × 45,963.99 - Step 4: Simplify right side
83,690.01x = 5,308,564,371.60 - Step 5: Solve for x
x = 5,308,564,371.60/83,690.01 - Step 6: Final answer
x = 63,431.28
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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.