Finding the Fourth Proportional to 79,199.09, 109,294.75 and 43,389.19
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Solution
The fourth proportional to 79,199.09, 109,294.75 and 43,389.19 is: 59,877.09
Step by Step Solution
- Step 1: Write the proportion equation
79,199.09 : 109,294.75 = 43,389.19 : x - Step 2: Convert to fraction form
79,199.09/109,294.75 = 43,389.19/x - Step 3: Cross multiply
79,199.09x = 109,294.75 × 43,389.19 - Step 4: Simplify right side
79,199.09x = 4,742,210,673.75 - Step 5: Solve for x
x = 4,742,210,673.75/79,199.09 - Step 6: Final answer
x = 59,877.09
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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.