Finding the Fourth Proportional to 71,857.76, 107,643.76 and 56,202.08
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Solution
The fourth proportional to 71,857.76, 107,643.76 and 56,202.08 is: 84,191.37
Step by Step Solution
- Step 1: Write the proportion equation
71,857.76 : 107,643.76 = 56,202.08 : x - Step 2: Convert to fraction form
71,857.76/107,643.76 = 56,202.08/x - Step 3: Cross multiply
71,857.76x = 107,643.76 × 56,202.08 - Step 4: Simplify right side
71,857.76x = 6,049,803,211.02 - Step 5: Solve for x
x = 6,049,803,211.02/71,857.76 - Step 6: Final answer
x = 84,191.37
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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.