Finding the Fourth Proportional to 79,233.16, 109,341.12 and 43,423.08
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Solution
The fourth proportional to 79,233.16, 109,341.12 and 43,423.08 is: 59,923.50
Step by Step Solution
- Step 1: Write the proportion equation
79,233.16 : 109,341.12 = 43,423.08 : x - Step 2: Convert to fraction form
79,233.16/109,341.12 = 43,423.08/x - Step 3: Cross multiply
79,233.16x = 109,341.12 × 43,423.08 - Step 4: Simplify right side
79,233.16x = 4,747,928,201.05 - Step 5: Solve for x
x = 4,747,928,201.05/79,233.16 - Step 6: Final answer
x = 59,923.50
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1.5x scale
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.