Finding the Fourth Proportional to 86,730.84, 119,675.34 and 48,991.32
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Solution
The fourth proportional to 86,730.84, 119,675.34 and 48,991.32 is: 67,600.55
Step by Step Solution
- Step 1: Write the proportion equation
86,730.84 : 119,675.34 = 48,991.32 : x - Step 2: Convert to fraction form
86,730.84/119,675.34 = 48,991.32/x - Step 3: Cross multiply
86,730.84x = 119,675.34 × 48,991.32 - Step 4: Simplify right side
86,730.84x = 5,863,052,878.05 - Step 5: Solve for x
x = 5,863,052,878.05/86,730.84 - Step 6: Final answer
x = 67,600.55
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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.