Finding the Fourth Proportional to 70,888.92, 106,369.74 and 48,720.12
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Solution
The fourth proportional to 70,888.92, 106,369.74 and 48,720.12 is: 73,105.17
Step by Step Solution
- Step 1: Write the proportion equation
70,888.92 : 106,369.74 = 48,720.12 : x - Step 2: Convert to fraction form
70,888.92/106,369.74 = 48,720.12/x - Step 3: Cross multiply
70,888.92x = 106,369.74 × 48,720.12 - Step 4: Simplify right side
70,888.92x = 5,182,346,497.17 - Step 5: Solve for x
x = 5,182,346,497.17/70,888.92 - Step 6: Final answer
x = 73,105.17
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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.