Finding the Fourth Proportional to 79,235.85, 109,346.33 and 43,425.09
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Solution
The fourth proportional to 79,235.85, 109,346.33 and 43,425.09 is: 59,927.09
Step by Step Solution
- Step 1: Write the proportion equation
79,235.85 : 109,346.33 = 43,425.09 : x - Step 2: Convert to fraction form
79,235.85/109,346.33 = 43,425.09/x - Step 3: Cross multiply
79,235.85x = 109,346.33 × 43,425.09 - Step 4: Simplify right side
79,235.85x = 4,748,374,221.42 - Step 5: Solve for x
x = 4,748,374,221.42/79,235.85 - Step 6: Final answer
x = 59,927.09
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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.