Finding the Fourth Proportional to 86,790.08, 119,705.99 and 61,269.84
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Solution
The fourth proportional to 86,790.08, 119,705.99 and 61,269.84 is: 84,506.97
Step by Step Solution
- Step 1: Write the proportion equation
86,790.08 : 119,705.99 = 61,269.84 : x - Step 2: Convert to fraction form
86,790.08/119,705.99 = 61,269.84/x - Step 3: Cross multiply
86,790.08x = 119,705.99 × 61,269.84 - Step 4: Simplify right side
86,790.08x = 7,334,365,949.46 - Step 5: Solve for x
x = 7,334,365,949.46/86,790.08 - Step 6: Final answer
x = 84,506.97
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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.