Finding the Fourth Proportional to 83,968.99, 115,887.80 and 48,158.23
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Solution
The fourth proportional to 83,968.99, 115,887.80 and 48,158.23 is: 66,464.43
Step by Step Solution
- Step 1: Write the proportion equation
83,968.99 : 115,887.80 = 48,158.23 : x - Step 2: Convert to fraction form
83,968.99/115,887.80 = 48,158.23/x - Step 3: Cross multiply
83,968.99x = 115,887.80 × 48,158.23 - Step 4: Simplify right side
83,968.99x = 5,580,951,103.67 - Step 5: Solve for x
x = 5,580,951,103.67/83,968.99 - Step 6: Final answer
x = 66,464.43
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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.