Finding the Fourth Proportional to 79,289.68, 109,313.91 and 62,990.97
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Solution
The fourth proportional to 79,289.68, 109,313.91 and 62,990.97 is: 86,843.45
Step by Step Solution
- Step 1: Write the proportion equation
79,289.68 : 109,313.91 = 62,990.97 : x - Step 2: Convert to fraction form
79,289.68/109,313.91 = 62,990.97/x - Step 3: Cross multiply
79,289.68x = 109,313.91 × 62,990.97 - Step 4: Simplify right side
79,289.68x = 6,885,789,225.39 - Step 5: Solve for x
x = 6,885,789,225.39/79,289.68 - Step 6: Final answer
x = 86,843.45
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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.