Finding the Fourth Proportional to 73,272.60, 109,831.95 and 46,638.99
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Solution
The fourth proportional to 73,272.60, 109,831.95 and 46,638.99 is: 69,909.51
Step by Step Solution
- Step 1: Write the proportion equation
73,272.60 : 109,831.95 = 46,638.99 : x - Step 2: Convert to fraction form
73,272.60/109,831.95 = 46,638.99/x - Step 3: Cross multiply
73,272.60x = 109,831.95 × 46,638.99 - Step 4: Simplify right side
73,272.60x = 5,122,451,217.73 - Step 5: Solve for x
x = 5,122,451,217.73/73,272.60 - Step 6: Final answer
x = 69,909.51
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.