Finding the Fourth Proportional to 79,240.24, 109,351.88 and 43,430.12
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Solution
The fourth proportional to 79,240.24, 109,351.88 and 43,430.12 is: 59,933.76
Step by Step Solution
- Step 1: Write the proportion equation
79,240.24 : 109,351.88 = 43,430.12 : x - Step 2: Convert to fraction form
79,240.24/109,351.88 = 43,430.12/x - Step 3: Cross multiply
79,240.24x = 109,351.88 × 43,430.12 - Step 4: Simplify right side
79,240.24x = 4,749,165,270.63 - Step 5: Solve for x
x = 4,749,165,270.63/79,240.24 - Step 6: Final answer
x = 59,933.76
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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.