Finding the Fourth Proportional to 73,023.63, 100,772.91 and 39,489.63
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Solution
The fourth proportional to 73,023.63, 100,772.91 and 39,489.63 is: 54,495.85
Step by Step Solution
- Step 1: Write the proportion equation
73,023.63 : 100,772.91 = 39,489.63 : x - Step 2: Convert to fraction form
73,023.63/100,772.91 = 39,489.63/x - Step 3: Cross multiply
73,023.63x = 100,772.91 × 39,489.63 - Step 4: Simplify right side
73,023.63x = 3,979,484,929.92 - Step 5: Solve for x
x = 3,979,484,929.92/73,023.63 - Step 6: Final answer
x = 54,495.85
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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.