Finding the Fourth Proportional to 83,921.84, 115,811.87 and 46,196.09
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Solution
The fourth proportional to 83,921.84, 115,811.87 and 46,196.09 is: 63,750.45
Step by Step Solution
- Step 1: Write the proportion equation
83,921.84 : 115,811.87 = 46,196.09 : x - Step 2: Convert to fraction form
83,921.84/115,811.87 = 46,196.09/x - Step 3: Cross multiply
83,921.84x = 115,811.87 × 46,196.09 - Step 4: Simplify right side
83,921.84x = 5,350,054,759.55 - Step 5: Solve for x
x = 5,350,054,759.55/83,921.84 - Step 6: Final answer
x = 63,750.45
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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.