Finding the Fourth Proportional to 83,826.02, 115,659.60 and 53,187.96
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Solution
The fourth proportional to 83,826.02, 115,659.60 and 53,187.96 is: 73,386.50
Step by Step Solution
- Step 1: Write the proportion equation
83,826.02 : 115,659.60 = 53,187.96 : x - Step 2: Convert to fraction form
83,826.02/115,659.60 = 53,187.96/x - Step 3: Cross multiply
83,826.02x = 115,659.60 × 53,187.96 - Step 4: Simplify right side
83,826.02x = 6,151,698,178.42 - Step 5: Solve for x
x = 6,151,698,178.42/83,826.02 - Step 6: Final answer
x = 73,386.50
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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.