Finding the Fourth Proportional to 83,999.68, 115,918.68 and 46,273.12
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Solution
The fourth proportional to 83,999.68, 115,918.68 and 46,273.12 is: 63,856.42
Step by Step Solution
- Step 1: Write the proportion equation
83,999.68 : 115,918.68 = 46,273.12 : x - Step 2: Convert to fraction form
83,999.68/115,918.68 = 46,273.12/x - Step 3: Cross multiply
83,999.68x = 115,918.68 × 46,273.12 - Step 4: Simplify right side
83,999.68x = 5,363,918,989.88 - Step 5: Solve for x
x = 5,363,918,989.88/83,999.68 - Step 6: Final answer
x = 63,856.42
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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.