Finding the Fourth Proportional to 79,913.64, 110,294.28 and 76,370.70
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Solution
The fourth proportional to 79,913.64, 110,294.28 and 76,370.70 is: 105,404.43
Step by Step Solution
- Step 1: Write the proportion equation
79,913.64 : 110,294.28 = 76,370.70 : x - Step 2: Convert to fraction form
79,913.64/110,294.28 = 76,370.70/x - Step 3: Cross multiply
79,913.64x = 110,294.28 × 76,370.70 - Step 4: Simplify right side
79,913.64x = 8,423,251,369.60 - Step 5: Solve for x
x = 8,423,251,369.60/79,913.64 - Step 6: Final answer
x = 105,404.43
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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.