Finding the Fourth Proportional to 79,132.84, 109,210.74 and 47,301.06
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Solution
The fourth proportional to 79,132.84, 109,210.74 and 47,301.06 is: 65,279.90
Step by Step Solution
- Step 1: Write the proportion equation
79,132.84 : 109,210.74 = 47,301.06 : x - Step 2: Convert to fraction form
79,132.84/109,210.74 = 47,301.06/x - Step 3: Cross multiply
79,132.84x = 109,210.74 × 47,301.06 - Step 4: Simplify right side
79,132.84x = 5,165,783,765.38 - Step 5: Solve for x
x = 5,165,783,765.38/79,132.84 - Step 6: Final answer
x = 65,279.90
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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.