Finding the Fourth Proportional to 71,933.12, 107,623.20 and 43,848.08
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Solution
The fourth proportional to 71,933.12, 107,623.20 and 43,848.08 is: 65,603.59
Step by Step Solution
- Step 1: Write the proportion equation
71,933.12 : 107,623.20 = 43,848.08 : x - Step 2: Convert to fraction form
71,933.12/107,623.20 = 43,848.08/x - Step 3: Cross multiply
71,933.12x = 107,623.20 × 43,848.08 - Step 4: Simplify right side
71,933.12x = 4,719,070,683.46 - Step 5: Solve for x
x = 4,719,070,683.46/71,933.12 - Step 6: Final answer
x = 65,603.59
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.