Finding the Fourth Proportional to 73,917.19, 102,005.76 and 40,383.19
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Solution
The fourth proportional to 73,917.19, 102,005.76 and 40,383.19 is: 55,728.82
Step by Step Solution
- Step 1: Write the proportion equation
73,917.19 : 102,005.76 = 40,383.19 : x - Step 2: Convert to fraction form
73,917.19/102,005.76 = 40,383.19/x - Step 3: Cross multiply
73,917.19x = 102,005.76 × 40,383.19 - Step 4: Simplify right side
73,917.19x = 4,119,317,987.17 - Step 5: Solve for x
x = 4,119,317,987.17/73,917.19 - Step 6: Final answer
x = 55,728.82
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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.