Finding the Fourth Proportional to 79,660.06, 109,906.14 and 45,199.09
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Solution
The fourth proportional to 79,660.06, 109,906.14 and 45,199.09 is: 62,360.71
Step by Step Solution
- Step 1: Write the proportion equation
79,660.06 : 109,906.14 = 45,199.09 : x - Step 2: Convert to fraction form
79,660.06/109,906.14 = 45,199.09/x - Step 3: Cross multiply
79,660.06x = 109,906.14 × 45,199.09 - Step 4: Simplify right side
79,660.06x = 4,967,657,513.41 - Step 5: Solve for x
x = 4,967,657,513.41/79,660.06 - Step 6: Final answer
x = 62,360.71
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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.